*HEADER   RIBONUCLEIC ACID                        24-MAY-96   1SLO    
*TITLE    FIRST STEM LOOP OF THE SL1 RNA FROM CAENORHABDITIS ELEGANS, 
*TITLE   2 NMR, MINIMIZED AVERAGE STRUCTURE                           
*COMPND   MOL_ID: 1;                                                  
*COMPND  2 MOLECULE: SL1 RNA STEM-LOOP;                               
*COMPND  3 CHAIN: NULL;                                               
*COMPND  4 FRAGMENT: 19 RESIDUE MODIFIED FRAGMENT FROM THE FIRST STEM 
*COMPND  5 LOOP OF THE SL1 RNA FROM CAENORHABDITIS ELEGANS;           
*COMPND  6 SYNONYM: SL1 RNA;                                          
*COMPND  7 ENGINEERED: YES                                            
*SOURCE   MOL_ID: 1;                                                  
*SOURCE  2 ORGANISM_SCIENTIFIC: CAENORHABDITIS ELEGANS;               
*SOURCE  3 EXPRESSION_SYSTEM: IN VITRO T7 POLYMERASE TRANSCRIPTION    
*KEYWDS   SPLICE DONOR SITE, STEM-LOOP, RIBONUCLEIC ACID              
*EXPDTA   NMR, MINIMIZED AVERAGE STRUCTURE                            
*AUTHOR   N.L.GREENBAUM,I.RADHAKRISHNAN,D.J.PATEL,D.HIRSH             
*REVDAT  1   07-DEC-96 1SLO    0                                      


remarks  Distance file for SL19 RNA.  Distance calculations based on NOE
remarks  build-ups.  NOESY mixing times of 50, 100, 150 and 200 ms used. 
remarks  Data collected on a Unity 600 spectrometer at 22 deg. C in D2O buffer.
remarks  Only NOEs that are unresolved in the 2D data set are included-(CHECK)
remarks
remarks                   G20
remarks               U19     A21
remarks            U18
remarks                          G22-G23-U24-A25-A26-3'
remarks           U17             *   *   *   *   *   
remarks                          C12-C11-A10-U09-U08-5'
remarks            G16
remarks               A15     C13
remarks                   A14
remarks
remarks  Reference cross peak: C12(H5)-(H6) [2.52 A]
remarks  Bounds specification: -/+15% [for regular build-ups]  
remarks                        -/+30% [for irregular bulid-ups] 

!residue U9
assign (resid    9 and name H1'  and segid SL19)
       (resid   25 and name H2   and segid SL19)  6.04  0.91  0.91
assign (resid    9 and name H1'  and segid SL19)
       (resid   26 and name H2   and segid SL19)  3.10  0.47  0.47

!residue A10
assign (resid   10 and name H2   and segid SL19)
       (resid   24 and name H1'  and segid SL19)  5.18  0.78  0.78
assign (resid   10 and name H2   and segid SL19)
       (resid   25 and name H8   and segid SL19)  6.58  0.99  0.99
assign (resid   10 and name H2   and segid SL19)
       (resid   25 and name H2   and segid SL19)  3.73  0.56  0.56
assign (resid   10 and name H2   and segid SL19)
       (resid   25 and name H1'  and segid SL19)  3.39  0.51  0.51
assign (resid   10 and name H2   and segid SL19)
       (resid   25 and name H2'  and segid SL19)  4.65  0.70  0.70
assign (resid   10 and name H1'  and segid SL19)
       (resid   25 and name H2   and segid SL19)  3.49  0.52  0.52
assign (resid   10 and name H2'  and segid SL19)
       (resid   25 and name H2   and segid SL19)  4.42  0.66  0.66

!residue A14
assign (resid   14 and name H2   and segid SL19)
       (resid   20 and name H1'  and segid SL19)  4.43  0.67  0.67
assign (resid   14 and name H1'  and segid SL19)
       (resid   21 and name H2   and segid SL19)  6.27  0.94  0.94

!residue A15
assign (resid   15 and name H2   and segid SL19)
       (resid   17 and name H6   and segid SL19)  4.44  0.67  0.67
assign (resid   15 and name H2   and segid SL19)
       (resid   18 and name H1'  and segid SL19)  4.88  0.73  0.73
assign (resid   15 and name H2   and segid SL19)
       (resid   19 and name H5   and segid SL19)  5.18  0.78  0.78
assign (resid   15 and name H2   and segid SL19)
       (resid   19 and name H6   and segid SL19)  4.90  0.73  0.73
assign (resid   15 and name H2   and segid SL19)
       (resid   19 and name H1'  and segid SL19)  3.90  0.59  0.59

!residue G16
assign (resid   16 and name H8   and segid SL19)
       (resid   18 and name H1'  and segid SL19)  5.98  0.90  0.90

!residue G20
assign (resid   20 and name H8   and segid SL19)
       (resid   22 and name H8   and segid SL19)  5.67  0.85  0.85
assign (resid   20 and name H1'  and segid SL19)
       (resid   22 and name H8   and segid SL19)  4.59  0.69  0.69

remarks  Distance file for SL19 RNA.  Distance calculations based on NOE
remarks  build-ups.  NOESY mixing times of 50, 100, 150 and 200 ms used. 
remarks  Data collected on a Unity 600 spectrometer at 22 deg. C in D2O buffer.

!residue U8
assign (resid    8 and name H6   and segid SL19)
       (resid    8 and name H1'  and segid SL19)  3.08  0.46  0.46
assign (resid    8 and name H1'  and segid SL19)
       (resid    8 and name H2'  and segid SL19)  2.57  0.39  0.39
assign (resid    8 and name H6   and segid SL19)
       (resid    9 and name H5   and segid SL19)  5.35  0.80  0.80
assign (resid    8 and name H1'  and segid SL19)
       (resid    9 and name H6   and segid SL19)  3.70  0.55  0.55
assign (resid    8 and name H5   and segid SL19)
       (resid    9 and name H5   and segid SL19)  3.76  0.56  0.56

!residue U9
assign (resid    9 and name H6   and segid SL19)
       (resid    9 and name H3'  and segid SL19)  2.62  0.39  0.39
assign (resid    9 and name H6   and segid SL19)
       (resid    9 and name H5'  and segid SL19)  3.43  0.51  2.31
assign (resid    9 and name H5   and segid SL19)
       (resid    9 and name H3'  and segid SL19)  3.64  0.55  0.55
assign (resid    9 and name H1'  and segid SL19)
       (resid    9 and name H3'  and segid SL19)  3.16  0.47  0.47
assign (resid    9 and name H1'  and segid SL19)
       (resid    9 and name H5'  and segid SL19)  3.59  0.54  2.34
assign (resid    9 and name H6   and segid SL19)
       (resid   10 and name H8   and segid SL19)  4.14  0.62  0.62
assign (resid    9 and name H1'  and segid SL19)
       (resid   10 and name H8   and segid SL19)  3.67  0.55  0.55
assign (resid    9 and name H1'  and segid SL19)
       (resid   10 and name H1'  and segid SL19)  4.61  0.69  0.69
assign (resid    9 and name H3'  and segid SL19)
       (resid   10 and name H8   and segid SL19)  3.00  0.45  0.45

!residue A10
assign (resid   10 and name H8   and segid SL19)
       (resid   10 and name H1'  and segid SL19)  3.71  0.56  0.56
assign (resid   10 and name H8   and segid SL19)
       (resid   10 and name H3'  and segid SL19)  2.76  0.41  0.41
assign (resid   10 and name H8   and segid SL19)
       (resid   10 and name H2'  and segid SL19)  3.23  0.48  0.48
assign (resid   10 and name H2   and segid SL19)
       (resid   10 and name H1'  and segid SL19)  4.51  0.68  0.68
assign (resid   10 and name H1'  and segid SL19)
       (resid   10 and name H3'  and segid SL19)  3.37  0.51  0.51
assign (resid   10 and name H1'  and segid SL19)
       (resid   10 and name H5'  and segid SL19)  4.01  0.60  2.40
assign (resid   10 and name H1'  and segid SL19)
       (resid   10 and name H4'  and segid SL19)  3.08  0.46  0.46
assign (resid   10 and name H1'  and segid SL19)
       (resid   10 and name H2'  and segid SL19)  2.63  0.39  0.39
assign (resid   10 and name H8   and segid SL19)
       (resid   11 and name H6   and segid SL19)  4.42  0.66  0.66
assign (resid   10 and name H8   and segid SL19)
       (resid   11 and name H5   and segid SL19)  4.05  0.61  0.61
assign (resid   10 and name H2   and segid SL19)
       (resid   11 and name H6   and segid SL19)  5.33  1.60  1.60
assign (resid   10 and name H2   and segid SL19)
       (resid   11 and name H1'  and segid SL19)  3.35  0.50  0.50
assign (resid   10 and name H1'  and segid SL19)
       (resid   11 and name H6   and segid SL19)  3.78  0.57  0.57
assign (resid   10 and name H1'  and segid SL19)
       (resid   11 and name H1'  and segid SL19)  4.51  0.68  0.68
assign (resid   10 and name H1'  and segid SL19)
       (resid   11 and name H5   and segid SL19)  4.63  0.69  0.69
assign (resid   10 and name H3'  and segid SL19)
       (resid   11 and name H6   and segid SL19)  3.06  0.46  0.46
assign (resid   10 and name H3'  and segid SL19)
       (resid   11 and name H5   and segid SL19)  3.40  0.51  0.51
assign (resid   10 and name H2'  and segid SL19)
       (resid   11 and name H6   and segid SL19)  2.48  0.37  0.37
assign (resid   10 and name H2'  and segid SL19)
       (resid   11 and name H1'  and segid SL19)  3.45  0.52  0.52
assign (resid   10 and name H2'  and segid SL19)
       (resid   11 and name H5   and segid SL19)  3.27  0.49  0.49

!residue C11
assign (resid   11 and name H6   and segid SL19)
       (resid   11 and name H1'  and segid SL19)  3.56  0.53  0.53
assign (resid   11 and name H6   and segid SL19)
       (resid   11 and name H3'  and segid SL19)  2.63  0.39  0.39
assign (resid   11 and name H6   and segid SL19)
       (resid   11 and name H2'  and segid SL19)  3.22  0.48  0.48
assign (resid   11 and name H6   and segid SL19)
       (resid   11 and name H5'  and segid SL19)  3.05  0.46  2.26
assign (resid   11 and name H1'  and segid SL19)
       (resid   11 and name H5'  and segid SL19)  3.79  0.57  2.37
assign (resid   11 and name H1'  and segid SL19)
       (resid   11 and name H4'  and segid SL19)  3.18  0.48  0.48
assign (resid   11 and name H1'  and segid SL19)
       (resid   11 and name H3'  and segid SL19)  3.20  0.48  0.48
assign (resid   11 and name H1'  and segid SL19)
       (resid   11 and name H2'  and segid SL19)  2.67  0.40  0.40
assign (resid   11 and name H5   and segid SL19)
       (resid   11 and name H3'  and segid SL19)  3.52  0.53  0.53
assign (resid   11 and name H5   and segid SL19)
       (resid   11 and name H2'  and segid SL19)  4.06  0.61  0.61
assign (resid   11 and name H1'  and segid SL19)
       (resid   12 and name H6   and segid SL19)  3.57  0.54  0.54
assign (resid   11 and name H5   and segid SL19)
       (resid   12 and name H5   and segid SL19)  3.45  0.52  0.52
assign (resid   11 and name H3'  and segid SL19)
       (resid   12 and name H5   and segid SL19)  3.42  0.51  0.51
assign (resid   11 and name H2'  and segid SL19)
       (resid   12 and name H6   and segid SL19)  2.32  0.35  0.35
assign (resid   11 and name H2'  and segid SL19)
       (resid   12 and name H5   and segid SL19)  3.18  0.48  0.48

!residue C12
assign (resid   12 and name H6   and segid SL19)
       (resid   12 and name H1'  and segid SL19)  3.37  0.51  0.51
assign (resid   12 and name H6   and segid SL19)
       (resid   12 and name H5'  and segid SL19)  3.23  0.48  2.28
assign (resid   12 and name H1'  and segid SL19)
       (resid   12 and name H2'  and segid SL19)  2.55  0.38  0.38
assign (resid   12 and name H1'  and segid SL19)
       (resid   12 and name H5'  and segid SL19)  4.70  0.70  2.50
assign (resid   12 and name H6   and segid SL19)
       (resid   13 and name H6   and segid SL19)  4.18  0.63  0.63
assign (resid   12 and name H1'  and segid SL19)
       (resid   13 and name H5   and segid SL19)  4.16  0.62  0.62
assign (resid   12 and name H5   and segid SL19)
       (resid   13 and name H5   and segid SL19)  3.50  0.53  0.53

!residue C13
assign (resid   13 and name H1'  and segid SL19)
       (resid   13 and name H5'  and segid SL19)  3.06  0.46  2.26
assign (resid   13 and name H1'  and segid SL19)
       (resid   13 and name H2'  and segid SL19)  2.61  0.39  0.39
assign (resid   13 and name H5   and segid SL19)
       (resid   14 and name H8   and segid SL19)  4.82  0.72  0.72
assign (resid   13 and name H1'  and segid SL19)
       (resid   14 and name H8   and segid SL19)  3.78  0.57  0.57
assign (resid   13 and name H2'  and segid SL19)
       (resid   14 and name H1'  and segid SL19)  3.37  0.51  0.51

!residue A14
assign (resid   14 and name H8   and segid SL19)
       (resid   14 and name H1'  and segid SL19)  3.43  0.51  0.51
assign (resid   14 and name H8   and segid SL19)
       (resid   14 and name H5'  and segid SL19)  3.01  0.45  2.25
assign (resid   14 and name H2   and segid SL19)
       (resid   14 and name H1'  and segid SL19)  4.48  0.67  0.67
assign (resid   14 and name H1'  and segid SL19)
       (resid   14 and name H4'  and segid SL19)  3.15  0.47  0.47
assign (resid   14 and name H8   and segid SL19)
       (resid   15 and name H8   and segid SL19)  4.03  0.60  0.60
assign (resid   14 and name H2   and segid SL19)
       (resid   15 and name H1'  and segid SL19)  3.22  0.48  0.48
assign (resid   14 and name H2   and segid SL19)
       (resid   15 and name H2'  and segid SL19)  4.44  0.67  0.67
assign (resid   14 and name H2   and segid SL19)
       (resid   15 and name H2   and segid SL19)  5.81  0.87  0.87
assign (resid   14 and name H1'  and segid SL19)
       (resid   15 and name H8   and segid SL19)  4.47  0.67  0.67

!residue A15
assign (resid   15 and name H8   and segid SL19)
       (resid   15 and name H1'  and segid SL19)  3.61  0.54  0.54
assign (resid   15 and name H8   and segid SL19)
       (resid   15 and name H3'  and segid SL19)  2.91  0.44  0.44
assign (resid   15 and name H1'  and segid SL19)
       (resid   15 and name H3'  and segid SL19)  3.42  0.51  0.51
assign (resid   15 and name H2   and segid SL19)
       (resid   16 and name H1'  and segid SL19)  4.34  0.65  0.65
assign (resid   15 and name H2   and segid SL19)
       (resid   16 and name H8   and segid SL19)  4.74  0.71  0.71

!residue G16
assign (resid   16 and name H8   and segid SL19)
       (resid   16 and name H1'  and segid SL19)  2.73  0.41  0.41
assign (resid   16 and name H8   and segid SL19)
       (resid   16 and name H2'  and segid SL19)  3.29  0.49  0.49
assign (resid   16 and name H1'  and segid SL19)
       (resid   16 and name H4'  and segid SL19)  3.38  0.51  0.51
assign (resid   16 and name H8   and segid SL19)
       (resid   17 and name H5   and segid SL19)  4.64  0.70  0.70

!residue U17
assign (resid   17 and name H6   and segid SL19)
       (resid   17 and name H1'  and segid SL19)  3.31  0.50  0.50
assign (resid   17 and name H6   and segid SL19)
       (resid   17 and name H3'  and segid SL19)  3.35  0.50  0.50
assign (resid   17 and name H6   and segid SL19)
       (resid   17 and name H2'  and segid SL19)  2.51  0.38  0.38
assign (resid   17 and name H1'  and segid SL19)
       (resid   17 and name H3'  and segid SL19)  3.38  0.51  0.51
assign (resid   17 and name H1'  and segid SL19)
       (resid   17 and name H2'  and segid SL19)  3.03  0.45  0.45

!residue U18
assign (resid   18 and name H6   and segid SL19)
       (resid   18 and name H1'  and segid SL19)  3.24  0.49  0.49
assign (resid   18 and name H6   and segid SL19)
       (resid   18 and name H2'  and segid SL19)  2.56  0.38  0.38
assign (resid   18 and name H6   and segid SL19)
       (resid   18 and name H5'  and segid SL19)  3.68  0.55  2.35
assign (resid   18 and name H1'  and segid SL19)
       (resid   18 and name H3'  and segid SL19)  3.57  0.53  0.53
assign (resid   18 and name H1'  and segid SL19)
       (resid   18 and name H4'  and segid SL19)  3.28  0.49  0.49
assign (resid   18 and name H1'  and segid SL19)
       (resid   18 and name H2'  and segid SL19)  3.03  0.45  0.45
assign (resid   18 and name H1'  and segid SL19)
       (resid   18 and name H5'  and segid SL19)  4.01  0.60  2.40
assign (resid   18 and name H1'  and segid SL19)
       (resid   19 and name H6   and segid SL19)  4.60  0.69  0.69
assign (resid   18 and name H6   and segid SL19)
       (resid   19 and name H5   and segid SL19)  3.96  0.59  0.59

!residue U19
assign (resid   19 and name H6   and segid SL19)
       (resid   19 and name H1'  and segid SL19)  3.13  0.47  0.47
assign (resid   19 and name H6   and segid SL19)
       (resid   19 and name H2'  and segid SL19)  2.73  0.41  0.41
assign (resid   19 and name H6   and segid SL19)
       (resid   19 and name H5'  and segid SL19)  3.24  0.49  2.29
assign (resid   19 and name H6   and segid SL19)
       (resid   19 and name H3'  and segid SL19)  2.75  0.41  0.41
assign (resid   19 and name H1'  and segid SL19)
       (resid   19 and name H3'  and segid SL19)  3.31  0.50  0.50
assign (resid   19 and name H1'  and segid SL19)
       (resid   19 and name H2'  and segid SL19)  2.53  0.38  0.38
assign (resid   19 and name H1'  and segid SL19)
       (resid   19 and name H5'  and segid SL19)  3.40  0.51  2.31
assign (resid   19 and name H3'  and segid SL19)
       (resid   20 and name H8   and segid SL19)  3.63  0.54  0.54
assign (resid   19 and name H2'  and segid SL19)
       (resid   20 and name H8   and segid SL19)  3.13  0.47  0.47

!residue G20
assign (resid   20 and name H8   and segid SL19)
       (resid   20 and name H3'  and segid SL19)  4.67  0.70  0.70
assign (resid   20 and name H8   and segid SL19)
       (resid   20 and name H2'  and segid SL19)  2.73  0.41  0.41
assign (resid   20 and name H8   and segid SL19)
       (resid   20 and name H5'  and segid SL19)  3.92  0.59  2.39
assign (resid   20 and name H1'  and segid SL19)
       (resid   21 and name H8   and segid SL19)  4.88  0.73  0.73

!residue A21
assign (resid   21 and name H8   and segid SL19)
       (resid   21 and name H1'  and segid SL19)  3.71  0.56  0.56
assign (resid   21 and name H8   and segid SL19)
       (resid   21 and name H2'  and segid SL19)  3.05  0.46  0.46
assign (resid   21 and name H8   and segid SL19)
       (resid   21 and name H3'  and segid SL19)  3.10  0.47  0.47
assign (resid   21 and name H8   and segid SL19)
       (resid   21 and name H4'  and segid SL19)  3.99  0.60  0.60
assign (resid   21 and name H8   and segid SL19)
       (resid   21 and name H5'  and segid SL19)  3.67  0.55  2.35
assign (resid   21 and name H1'  and segid SL19)
       (resid   21 and name H2'  and segid SL19)  3.00  0.45  0.45
assign (resid   21 and name H1'  and segid SL19)
       (resid   21 and name H3'  and segid SL19)  3.55  0.53  0.53
assign (resid   21 and name H1'  and segid SL19)
       (resid   21 and name H4'  and segid SL19)  3.31  0.50  0.50
assign (resid   21 and name H1'  and segid SL19)
       (resid   21 and name H5'  and segid SL19)  4.08  0.61  2.41
assign (resid   21 and name H2'  and segid SL19)
       (resid   21 and name H4'  and segid SL19)  3.61  0.54  0.54
assign (resid   21 and name H2'  and segid SL19)
       (resid   21 and name H5'  and segid SL19)  3.24  0.49  2.29
assign (resid   21 and name H3'  and segid SL19)
       (resid   21 and name H5'  and segid SL19)  2.80  0.42  2.22
assign (resid   21 and name H3'  and segid SL19)
       (resid   21 and name H4'  and segid SL19)  2.90  0.44  0.44
assign (resid   21 and name H8   and segid SL19)
       (resid   22 and name H8   and segid SL19)  5.98  0.90  0.90
assign (resid   21 and name H2   and segid SL19)
       (resid   22 and name H1'  and segid SL19)  6.27  0.94  0.94
assign (resid   21 and name H1'  and segid SL19)
       (resid   22 and name H8   and segid SL19)  5.09  0.76  0.76
assign (resid   21 and name H2'  and segid SL19)
       (resid   22 and name H8   and segid SL19)  3.67  0.55  0.55
assign (resid   21 and name H3'  and segid SL19)
       (resid   22 and name H8   and segid SL19)  3.44  0.52  0.52

!residue G22
assign (resid   22 and name H8   and segid SL19)
       (resid   22 and name H2'  and segid SL19)  3.71  0.56  0.56
assign (resid   22 and name H1'  and segid SL19)
       (resid   22 and name H2'  and segid SL19)  3.20  0.48  0.48
assign (resid   22 and name H8   and segid SL19)
       (resid   23 and name H8   and segid SL19)  4.67  0.70  0.70
assign (resid   22 and name H1'  and segid SL19)
       (resid   23 and name H8   and segid SL19)  3.68  0.55  0.55
assign (resid   22 and name H2'  and segid SL19)
       (resid   23 and name H8   and segid SL19)  2.57  0.39  0.39
assign (resid   22 and name H2'  and segid SL19)
       (resid   23 and name H1'  and segid SL19)  3.83  0.58  0.58
assign (resid   22 and name H4'  and segid SL19)
       (resid   23 and name H8   and segid SL19)  4.43  0.66  0.66
assign (resid   22 and name H3'  and segid SL19)
       (resid   23 and name H8   and segid SL19)  3.05  0.46  0.46

!residue G23
assign (resid   23 and name H8   and segid SL19)
       (resid   23 and name H1'  and segid SL19)  3.57  0.54  0.54
assign (resid   23 and name H8   and segid SL19)
       (resid   23 and name H5'  and segid SL19)  3.37  0.51  2.31
assign (resid   23 and name H1'  and segid SL19)
       (resid   23 and name H5'  and segid SL19)  3.66  0.55  2.35
assign (resid   23 and name H8   and segid SL19)
       (resid   24 and name H6   and segid SL19)  5.15  1.54  1.54
assign (resid   23 and name H8   and segid SL19)
       (resid   24 and name H5   and segid SL19)  4.32  0.65  0.65
assign (resid   23 and name H1'  and segid SL19)
       (resid   24 and name H6   and segid SL19)  3.71  0.56  0.56
assign (resid   23 and name H1'  and segid SL19)
       (resid   24 and name H5   and segid SL19)  5.01  0.75  0.75
assign (resid   23 and name H2'  and segid SL19)
       (resid   24 and name H6   and segid SL19)  2.43  0.36  0.36
assign (resid   23 and name H2'  and segid SL19)
       (resid   24 and name H5   and segid SL19)  2.95  0.44  0.44
assign (resid   23 and name H5'  and segid SL19)
       (resid   24 and name H6   and segid SL19)  3.47  0.52  2.32

!residue U24
assign (resid   24 and name H6   and segid SL19)
       (resid   24 and name H1'  and segid SL19)  3.37  0.51  0.51
assign (resid   24 and name H1'  and segid SL19)
       (resid   24 and name H5   and segid SL19)  4.46  0.67  0.67
assign (resid   24 and name H5   and segid SL19)
       (resid   24 and name H5'  and segid SL19)  3.98  0.60  2.40
assign (resid   24 and name H6   and segid SL19)
       (resid   25 and name H8   and segid SL19)  6.19  0.93  0.93
assign (resid   24 and name H1'  and segid SL19)
       (resid   25 and name H8   and segid SL19)  3.72  0.56  0.56
assign (resid   24 and name H5   and segid SL19)
       (resid   25 and name H8   and segid SL19)  5.41  0.81  0.81
assign (resid   24 and name H4'  and segid SL19)
       (resid   25 and name H8   and segid SL19)  4.23  0.63  0.63
assign (resid   24 and name H5'  and segid SL19)
       (resid   25 and name H8   and segid SL19)  5.48  0.82  2.62

!residue A25
assign (resid   25 and name H8   and segid SL19)
       (resid   25 and name H1'  and segid SL19)  3.75  0.56  0.56
assign (resid   25 and name H8   and segid SL19)
       (resid   25 and name H3'  and segid SL19)  3.17  0.48  0.48
assign (resid   25 and name H8   and segid SL19)
       (resid   25 and name H2'  and segid SL19)  3.54  0.53  0.53
assign (resid   25 and name H8   and segid SL19)
       (resid   25 and name H5'  and segid SL19)  3.49  0.52  2.32
assign (resid   25 and name H2   and segid SL19)
       (resid   25 and name H1'  and segid SL19)  4.53  0.68  0.68
assign (resid   25 and name H1'  and segid SL19)
       (resid   25 and name H3'  and segid SL19)  3.59  0.54  0.54
assign (resid   25 and name H1'  and segid SL19)
       (resid   25 and name H4'  and segid SL19)  3.08  0.46  0.46
assign (resid   25 and name H1'  and segid SL19)
       (resid   25 and name H2'  and segid SL19)  2.76  0.41  0.41
assign (resid   25 and name H8   and segid SL19)
       (resid   26 and name H8   and segid SL19)  5.25  0.79  0.79
assign (resid   25 and name H2   and segid SL19)
       (resid   26 and name H2   and segid SL19)  4.06  0.61  0.61
assign (resid   25 and name H2   and segid SL19)
       (resid   26 and name H1'  and segid SL19)  3.43  0.51  0.51
assign (resid   25 and name H2   and segid SL19)
       (resid   26 and name H2'  and segid SL19)  4.87  0.73  0.73
assign (resid   25 and name H1'  and segid SL19)
       (resid   26 and name H8   and segid SL19)  3.78  0.57  0.57
assign (resid   25 and name H3'  and segid SL19)
       (resid   26 and name H8   and segid SL19)  3.91  0.59  0.59
assign (resid   25 and name H2'  and segid SL19)
       (resid   26 and name H8   and segid SL19)  2.85  0.43  0.43

!residue A26
assign (resid   26 and name H8   and segid SL19)
       (resid   26 and name H1'  and segid SL19)  4.02  0.60  0.60
assign (resid   26 and name H8   and segid SL19)
       (resid   26 and name H3'  and segid SL19)  2.94  0.44  0.44
assign (resid   26 and name H2   and segid SL19)
       (resid   26 and name H1'  and segid SL19)  4.30  0.65  0.65

remarks  Includes long range (resid i -> resid i+2 or greater) distances
remarks  Distance file for SL19 RNA based on integrated volumes of
remarks  cross peaks from 100 ms NOESY spectrum run at 284 K (AMX 500).

assign (resid    8 and name H3   and segid SL19)
       (resid   25 and name H2   and segid SL19)  5.94  1.19  1.19
assign (resid    8 and name H3   and segid SL19)
       (resid   26 and name H61  and segid SL19)  3.38  0.68  0.68
assign (resid    8 and name H3   and segid SL19)
       (resid   26 and name H2   and segid SL19)  2.96  0.59  0.59
assign (resid    9 and name H3   and segid SL19)
       (resid   25 and name H2   and segid SL19)  2.76  0.55  0.55
assign (resid    9 and name H3   and segid SL19)
       (resid   25 and name H62  and segid SL19)  3.05  0.61  0.61
assign (resid    9 and name H3   and segid SL19)
       (resid   25 and name H61  and segid SL19)  3.44  0.69  0.69
assign (resid    9 and name H3   and segid SL19)
       (resid   26 and name H2   and segid SL19)  3.76  0.75  0.75
assign (resid   10 and name H62  and segid SL19)
       (resid   24 and name H3   and segid SL19)  3.19  0.64  0.64
assign (resid   10 and name H2   and segid SL19)
       (resid   24 and name H3   and segid SL19)  2.90  0.58  0.58
assign (resid   10 and name H61  and segid SL19)
       (resid   24 and name H3   and segid SL19)  3.20  0.64  0.64
assign (resid   11 and name H41  and segid SL19)
       (resid   23 and name H1   and segid SL19)  3.41  0.68  0.68
assign (resid   11 and name H5   and segid SL19)
       (resid   23 and name H1   and segid SL19)  4.76  0.95  0.95
assign (resid   11 and name H42  and segid SL19)
       (resid   24 and name H3   and segid SL19)  4.37  0.87  0.87
assign (resid   11 and name H41  and segid SL19)
       (resid   24 and name H3   and segid SL19)  5.30  1.06  1.06
assign (resid   12 and name H42  and segid SL19)
       (resid   22 and name H1   and segid SL19)  2.80  0.56  0.56
assign (resid   12 and name H41  and segid SL19)
       (resid   22 and name H1   and segid SL19)  3.26  0.65  0.65
assign (resid   12 and name H1'  and segid SL19)
       (resid   23 and name H1   and segid SL19)  4.00  0.80  0.80
assign (resid   13 and name H1'  and segid SL19)
       (resid   22 and name H1   and segid SL19)  3.65  0.73  0.73

remarks  Includes short range (resid i -> resid i+1 or i) distances.
remarks  Distance file for SL19 RNA based on integrated volumes of
remarks  cross peaks from 100 ms NOESY spectrum run at 284 K (AMX 500).

assign (resid    8 and name H3   and segid SL19)
       (resid    9 and name H3   and segid SL19)  4.14  0.83  0.83
assign (resid   22 and name H1   and segid SL19)
       (resid   23 and name H1'  and segid SL19)  3.72  0.74  0.74
assign (resid   23 and name H1   and segid SL19)
       (resid   24 and name H3   and segid SL19)  4.03  0.81  0.81
assign (resid   23 and name H1   and segid SL19)
       (resid   24 and name H1'  and segid SL19)  5.16  1.03  1.03
assign (resid   24 and name H3   and segid SL19)
       (resid   24 and name H1'  and segid SL19)  5.63  1.13  1.13
assign (resid   24 and name H3   and segid SL19)
       (resid   25 and name H1'  and segid SL19)  4.72  0.94  0.94


remarks  Distance file for SL19 RNA based on appearance of NOEs
remarks  in 3D NOESY(350 ms)-{1H-13C} HMQC spectrum at 22 C (Unity 600).
remarks  Only NOEs that are unresolved in the 2D data set are included.

assign (resid  18 and name H6   and segid SL19)
       (resid  16 and name H1'  and segid SL19)  5.00  2.20  1.50
assign (resid  16 and name H8   and segid SL19)
       (resid  18 and name H1'  and segid SL19)  4.00  2.20  2.50
assign (resid  19 and name H1'  and segid SL19)
       (resid  17 and name H6   and segid SL19)  4.00  2.20  1.50

remarks  Distance file for SL19 RNA based on appearance of NOEs
remarks  in 3D NOESY(350 ms)-{1H-13C} HMQC spectrum at 22 C (Unity 600).
remarks  Only NOEs that are unresolved in the 2D data set are included.

assign (resid   9 and name H6   and segid SL19)
       (resid   8 and name H4'  and segid SL19)  3.00  1.20  2.50
assign (resid   9 and name H6   and segid SL19)
       (resid   9 and name H2'  and segid SL19)  3.00  1.20  2.50

assign (resid  10 and name H8   and segid SL19)
       (resid   9 and name H2'  and segid SL19)  3.00  1.20  2.50
assign (resid  10 and name H8   and segid SL19)
       (resid  10 and name H4'  and segid SL19)  3.00  1.20  2.50
assign (resid  11 and name H6   and segid SL19)
       (resid  11 and name H4'  and segid SL19)  3.00  1.20  2.50
assign (resid  12 and name H6   and segid SL19)   
       (resid  13 and name H5   and segid SL19)  4.00  2.20  1.50
assign (resid  13 and name H6   and segid SL19)
       (resid  12 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  13 and name H5   and segid SL19)
       (resid  13 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  14 and name H8   and segid SL19)
       (resid  13 and name H4'  and segid SL19)  4.00  2.20  1.50
 
assign (resid  15 and name H1'  and segid SL19)
       (resid  14 and name H2'  and segid SL19)  4.00  2.20  1.20

assign (resid  14 and name H8   and segid SL19)
       (resid  14 and name H2'  and segid SL19)  4.00  2.20  1.50
assign (resid  14 and name H8   and segid SL19)
       (resid  14 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  15 and name H8   and segid SL19)
       (resid  14 and name H2'  and segid SL19)  2.50  0.70  0.20
assign (resid  15 and name H8   and segid SL19)
       (resid  14 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  15 and name H8   and segid SL19)
       (resid  15 and name H2'  and segid SL19)  4.00  2.20  2.50
assign (resid  15 and name H8   and segid SL19)
       (resid  15 and name H4'  and segid SL19)  4.00  2.20  1.50

assign (resid  15 and name H1'  and segid SL19)
       (resid  15 and name H2   and segid SL19)  5.00  2.20  2.50

assign (resid  15 and name H1'  and segid SL19)
       (resid  15 and name H4'  and segid SL19)  3.00  1.20  0.60
assign (resid  16 and name H8   and segid SL19)
       (resid  15 and name H2'  and segid SL19)  4.00  2.20  1.50
assign (resid  16 and name H1'  and segid SL19)
       (resid  16 and name H2'  and segid SL19)  3.00  1.20  0.60
assign (resid  16 and name H8   and segid SL19)
       (resid  17 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  16 and name H8   and segid SL19)
       (resid  17 and name H2'  and segid SL19)  3.00  1.20  0.60
assign (resid  16 and name H8   and segid SL19)
       (resid  17 and name H1'  and segid SL19)  4.00  2.20  2.50
assign (resid  17 and name H6   and segid SL19)
       (resid  16 and name H2'  and segid SL19)  4.00  2.20  1.50
assign (resid  17 and name H6   and segid SL19)
       (resid  17 and name H4'  and segid SL19)  4.00  2.20  2.50
assign (resid  17 and name H6   and segid SL19)
       (resid  17 and name H3'  and segid SL19)  3.00  1.20  0.60
assign (resid  17 and name H6   and segid SL19)
       (resid  17 and name H2'  and segid SL19)  2.50  0.70  0.20
assign (resid  17 and name H5   and segid SL19)
       (resid  17 and name H3'  and segid SL19)  4.00  2.20  2.50
assign (resid  17 and name H5   and segid SL19)
       (resid  17 and name H2'  and segid SL19)  3.50  1.20  0.60

assign (resid  16 and name H1'  and segid SL19)
       (resid  17 and name H4'  and segid SL19)  3.00  1.20  0.60
assign (resid  17 and name H1'  and segid SL19)
       (resid  17 and name H2'  and segid SL19)  3.00  1.20  0.60
assign (resid  18 and name H1'  and segid SL19)
       (resid  18 and name H2'  and segid SL19)  3.00  1.20  0.60

assign (resid  18 and name H6   and segid SL19)  
       (resid  17 and name H3'  and segid SL19)  3.50  1.20  0.60
assign (resid  18 and name H6   and segid SL19)  
       (resid  17 and name H2'  and segid SL19)  3.00  1.20  0.60
assign (resid  18 and name H5   and segid SL19)  
       (resid  18 and name H2'  and segid SL19)  3.50  1.20  0.60
assign (resid  18 and name H5   and segid SL19)  
       (resid  18 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  18 and name H6   and segid SL19)
       (resid  18 and name H3'  and segid SL19)  3.50  1.20  0.60
assign (resid  19 and name H5   and segid SL19)
       (resid  18 and name H5'  and segid SL19)  4.00  2.20  4.30
assign (resid  19 and name H5   and segid SL19)
       (resid  18 and name H3'  and segid SL19)  4.00  2.20  1.50
assign (resid  19 and name H5   and segid SL19)
       (resid  19 and name H5'  and segid SL19)  4.00  2.20  3.30
assign (resid  19 and name H5   and segid SL19)
       (resid  19 and name H2'  and segid SL19)  4.00  2.20  1.50



assign (resid  19 and name H1'  and segid SL19)
       (resid  18 and name H2'  and segid SL19)  3.50  1.20  2.50
assign (resid  20 and name H1'  and segid SL19)
       (resid  20 and name H2'  and segid SL19)  3.00  1.50  0.60

assign (resid  20 and name H2'  and segid SL19)
       (resid  21 and name H5'  and segid SL19)  4.00  2.20  1.50

assign (resid  21 and name H1'  and segid SL19)
       (resid  21 and name H2'  and segid SL19)  3.00  1.50  0.60
assign (resid  21 and name H8   and segid SL19)
       (resid  22 and name H1'  and segid SL19)  5.00  1.20  2.50

assign (resid  22 and name H8   and segid SL19)
       (resid  22 and name H3'  and segid SL19)  3.00  1.20  0.60
assign (resid  22 and name H8   and segid SL19)  
       (resid  22 and name H1'  and segid SL19)  3.50  1.20  0.60
assign (resid  23 and name H8   and segid SL19)
       (resid  23 and name H2'  and segid SL19)  3.00  1.20  2.50
assign (resid  23 and name H8   and segid SL19)
       (resid  23 and name H3'  and segid SL19)  3.00  1.20  2.50
assign (resid  23 and name H8   and segid SL19)
       (resid  23 and name H4'  and segid SL19)  3.00  1.20  2.50
assign (resid  24 and name H6   and segid SL19)
       (resid  23 and name H3'  and segid SL19)  3.00  1.20  2.50
assign (resid  24 and name H6   and segid SL19)
       (resid  24 and name H2'  and segid SL19)  3.00  1.20  2.50
assign (resid  24 and name H6   and segid SL19)
       (resid  24 and name H3'  and segid SL19)  3.00  1.20  2.50
assign (resid  24 and name H6   and segid SL19)
       (resid  24 and name H4'  and segid SL19)  3.50  1.20  0.60
assign (resid  25 and name H8   and segid SL19)
       (resid  25 and name H4'  and segid SL19)  3.00  1.20  2.50
assign (resid  25 and name H8   and segid SL19)
       (resid  24 and name H2'  and segid SL19)  3.00  1.20  2.50
assign (resid  25 and name H8   and segid SL19)
       (resid  24 and name H3'  and segid SL19)  3.00  1.20  2.50
assign (resid  26 and name H8   and segid SL19)  
       (resid  26 and name H4'  and segid SL19)  3.00  1.20  2.50

remarks  h-bond restraints for the imino and amino groups
remarks  done a la noe constraints (Magdalena Erikkson & David Norman)
remarks  values taken from Saenger, pp 123.

remarks  U8-A26

assign (resid    8 and name  H3  and segid SL19)
       (resid   26 and name  N1  and segid SL19)  1.810 0.10 0.10
assign (resid    8 and name  O4  and segid SL19)
       (resid   26 and name  H62 and segid SL19)  1.940 0.10 0.10

remarks  U9-A25

assign (resid    9 and name  H3  and segid SL19)
       (resid   25 and name  N1  and segid SL19)  1.810 0.10 0.10
assign (resid    9 and name  O4  and segid SL19)
       (resid   25 and name  H62 and segid SL19)  1.940 0.10 0.10

remarks  A10-U24

assign (resid   10 and name  N1  and segid SL19)
       (resid   24 and name  H3  and segid SL19)  1.810 0.10 0.10
assign (resid   10 and name  H62 and segid SL19)
       (resid   24 and name  O4  and segid SL19)  1.940 0.10 0.10

remarks  C11-G23

assign (resid   11 and name  N3  and segid SL19)
       (resid   23 and name  H1  and segid SL19)  1.940 0.10 0.10
assign (resid   11 and name  H42 and segid SL19)
       (resid   23 and name  O6  and segid SL19)  1.900 0.10 0.10
assign (resid   11 and name  O2  and segid SL19)
       (resid   23 and name  H22 and segid SL19)  1.850 0.10 0.10

remarks  C12-G22

assign (resid   12 and name  N3  and segid SL19)
       (resid   22 and name  H1  and segid SL19)  1.940 0.10 0.10
assign (resid   12 and name  H42 and segid SL19)
       (resid   22 and name  O6  and segid SL19)  1.900 0.10 0.10
assign (resid   12 and name  O2  and segid SL19)
       (resid   22 and name  H22 and segid SL19)  1.850 0.10 0.10

remarks  hbond restraints for the imino and amino donor and acceptor heavy atoms
remarks  done a la noe constraints (Clore-G-M) Biochem. 1988, 27, 4185-4197.
remarks  values taken from Saenger, pp 123.

remarks  U8-A26

assign (resid    8 and name  N3  and segid SL19)
       (resid   26 and name  N1  and segid SL19)  2.820 0.10 0.10
assign (resid    8 and name  O4  and segid SL19)
       (resid   26 and name  N6  and segid SL19)  2.950 0.10 0.10

remarks  U9-A25

assign (resid    9 and name  N3  and segid SL19)
       (resid   25 and name  N1  and segid SL19)  2.820 0.10 0.10
assign (resid    9 and name  O4  and segid SL19)
       (resid   25 and name  N6  and segid SL19)  2.950 0.10 0.10

remarks  A10-U24

assign (resid   10 and name  N1  and segid SL19)
       (resid   24 and name  N3  and segid SL19)  2.820 0.10 0.10
assign (resid   10 and name  N6  and segid SL19)
       (resid   24 and name  O4  and segid SL19)  2.950 0.10 0.10

remarks  C11-G23

assign (resid   11 and name  N3  and segid SL19)
       (resid   23 and name  N1  and segid SL19)  2.950 0.10 0.10
assign (resid   11 and name  N4  and segid SL19)
       (resid   23 and name  O6  and segid SL19)  2.910 0.10 0.10
assign (resid   11 and name  O2  and segid SL19)
       (resid   23 and name  N2  and segid SL19)  2.860 0.10 0.10

remarks  C12-G22

assign (resid   12 and name  N3  and segid SL19)
       (resid   22 and name  N1  and segid SL19)  2.950 0.10 0.10
assign (resid   12 and name  N4  and segid SL19)
       (resid   22 and name  O6  and segid SL19)  2.910 0.10 0.10
assign (resid   12 and name  O2  and segid SL19)
       (resid   22 and name  N2  and segid SL19)  2.860 0.10 0.10

remarks               G20
remarks           U19     A21
remarks        U18
remarks                      G22-G23-U24-A25-A26- 3'
remarks       U17             *   *   *   *   * 
remarks                      C12-C11-A10-U09-U08- 5'
remarks        G16
remarks           A15     C13
remarks               A14
remarks 
remarks
remarks  7/18/95  This table set up to artifically constrain formation
remarks  of g20-c13 interaction (loose bounds on artificial g20h1-c13n3
remarks  noe).

!artificial noe to constrain g20-c13 interaction
assign (resid   20 and name H1   and segid SL19)
       (resid   13 and name N3  and segid SL19)  3.00  1.50  2.50

remarks  Dihedral angle restraints file for SL19 RNA.  
remarks  C2'-endo assigned for G16, U18, G20, A21; others assigned C3'-endo
remarks U19 left unrestrained.
remarks  Added syn torsion angle restraint for G16 (7/29/94).
remarks  Changed U17 assignment from C3'-endo to C2'-endo (8/30/94).

restraints 
   dihedral
      reset
      nassign=500

assign (resid  8 and name  C4' and segid SL19)
       (resid  8 and name  O4' and segid SL19)
       (resid  8 and name  C1' and segid SL19)
       (resid  8 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid  8 and name  C1' and segid SL19)
       (resid  8 and name  C2' and segid SL19)
       (resid  8 and name  C3' and segid SL19)
       (resid  8 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid  9 and name  C4' and segid SL19)
       (resid  9 and name  O4' and segid SL19)
       (resid  9 and name  C1' and segid SL19)
       (resid  9 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid  9 and name  C1' and segid SL19)
       (resid  9 and name  C2' and segid SL19)
       (resid  9 and name  C3' and segid SL19)
       (resid  9 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 10 and name  C4' and segid SL19)
       (resid 10 and name  O4' and segid SL19)
       (resid 10 and name  C1' and segid SL19)
       (resid 10 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 10 and name  C1' and segid SL19)
       (resid 10 and name  C2' and segid SL19)
       (resid 10 and name  C3' and segid SL19)
       (resid 10 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 11 and name  C4' and segid SL19)
       (resid 11 and name  O4' and segid SL19)
       (resid 11 and name  C1' and segid SL19)
       (resid 11 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 11 and name  C1' and segid SL19)
       (resid 11 and name  C2' and segid SL19)
       (resid 11 and name  C3' and segid SL19)
       (resid 11 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 12 and name  C4' and segid SL19)
       (resid 12 and name  O4' and segid SL19)
       (resid 12 and name  C1' and segid SL19)
       (resid 12 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 12 and name  C1' and segid SL19)
       (resid 12 and name  C2' and segid SL19)
       (resid 12 and name  C3' and segid SL19)
       (resid 12 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 13 and name  C4' and segid SL19)
       (resid 13 and name  O4' and segid SL19)
       (resid 13 and name  C1' and segid SL19)
       (resid 13 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 13 and name  C1' and segid SL19)
       (resid 13 and name  C2' and segid SL19)
       (resid 13 and name  C3' and segid SL19)
       (resid 13 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 14 and name  C4' and segid SL19)
       (resid 14 and name  O4' and segid SL19)
       (resid 14 and name  C1' and segid SL19)
       (resid 14 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 14 and name  C1' and segid SL19)
       (resid 14 and name  C2' and segid SL19)
       (resid 14 and name  C3' and segid SL19)
       (resid 14 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 15 and name  C4' and segid SL19)
       (resid 15 and name  O4' and segid SL19)
       (resid 15 and name  C1' and segid SL19)
       (resid 15 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 15 and name  C1' and segid SL19)
       (resid 15 and name  C2' and segid SL19)
       (resid 15 and name  C3' and segid SL19)
       (resid 15 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 16 and name  C4' and segid SL19)
       (resid 16 and name  O4' and segid SL19)
       (resid 16 and name  C1' and segid SL19)
       (resid 16 and name  C2' and segid SL19)  1.0  -22.0  10.0  2

assign (resid 16 and name  C1' and segid SL19)
       (resid 16 and name  C2' and segid SL19)
       (resid 16 and name  C3' and segid SL19)
       (resid 16 and name  C4' and segid SL19)  1.0  -36.0  4.0  2

assign (resid 17 and name  C4' and segid SL19)
       (resid 17 and name  O4' and segid SL19)
       (resid 17 and name  C1' and segid SL19)
       (resid 17 and name  C2' and segid SL19)  1.0  -22.0  10.0  2

assign (resid 17 and name  C1' and segid SL19)
       (resid 17 and name  C2' and segid SL19)
       (resid 17 and name  C3' and segid SL19)
       (resid 17 and name  C4' and segid SL19)  1.0  -36.0  4.0  2

assign (resid 18 and name  C4' and segid SL19)
       (resid 18 and name  O4' and segid SL19)
       (resid 18 and name  C1' and segid SL19)
       (resid 18 and name  C2' and segid SL19)  1.0  -22.0  10.0  2

assign (resid 18 and name  C1' and segid SL19)
       (resid 18 and name  C2' and segid SL19)
       (resid 18 and name  C3' and segid SL19)
       (resid 18 and name  C4' and segid SL19)  1.0  -36.0  4.0  2

assign (resid 20 and name  C4' and segid SL19)
       (resid 20 and name  O4' and segid SL19)
       (resid 20 and name  C1' and segid SL19)
       (resid 20 and name  C2' and segid SL19)  1.0  -22.0  10.0  2

assign (resid 20 and name  C1' and segid SL19)
       (resid 20 and name  C2' and segid SL19)
       (resid 20 and name  C3' and segid SL19)
       (resid 20 and name  C4' and segid SL19)  1.0  -36.0  4.0  2

assign (resid 21 and name  C4' and segid SL19)
       (resid 21 and name  O4' and segid SL19)
       (resid 21 and name  C1' and segid SL19)
       (resid 21 and name  C2' and segid SL19)  1.0  -22.0  10.0  2

assign (resid 21 and name  C1' and segid SL19)
       (resid 21 and name  C2' and segid SL19)
       (resid 21 and name  C3' and segid SL19)
       (resid 21 and name  C4' and segid SL19)  1.0  -36.0  4.0  2

assign (resid 22 and name  C4' and segid SL19)
       (resid 22 and name  O4' and segid SL19)
       (resid 22 and name  C1' and segid SL19)
       (resid 22 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 22 and name  C1' and segid SL19)
       (resid 22 and name  C2' and segid SL19)
       (resid 22 and name  C3' and segid SL19)
       (resid 22 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 23 and name  C4' and segid SL19)
       (resid 23 and name  O4' and segid SL19)
       (resid 23 and name  C1' and segid SL19)
       (resid 23 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 23 and name  C1' and segid SL19)
       (resid 23 and name  C2' and segid SL19)
       (resid 23 and name  C3' and segid SL19)
       (resid 23 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 24 and name  C4' and segid SL19)
       (resid 24 and name  O4' and segid SL19)
       (resid 24 and name  C1' and segid SL19)
       (resid 24 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 24 and name  C1' and segid SL19)
       (resid 24 and name  C2' and segid SL19)
       (resid 24 and name  C3' and segid SL19)
       (resid 24 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 25 and name  C4' and segid SL19)
       (resid 25 and name  O4' and segid SL19)
       (resid 25 and name  C1' and segid SL19)
       (resid 25 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 25 and name  C1' and segid SL19)
       (resid 25 and name  C2' and segid SL19)
       (resid 25 and name  C3' and segid SL19)
       (resid 25 and name  C4' and segid SL19)  1.0  36.0  4.0  2

assign (resid 26 and name  C4' and segid SL19)
       (resid 26 and name  O4' and segid SL19)
       (resid 26 and name  C1' and segid SL19)
       (resid 26 and name  C2' and segid SL19)  1.0  0.0  12.0  2

assign (resid 26 and name  C1' and segid SL19)
       (resid 26 and name  C2' and segid SL19)
       (resid 26 and name  C3' and segid SL19)
       (resid 26 and name  C4' and segid SL19)  1.0  36.0  4.0  2
    scale=$kcdi
  end
flags include cdih end

remarks  Dihedral angle restraints file for SL19 RNA.  
remarks  Dihedral angles determined from base-H1' distances (8/30/94).
remarks  10/5/94 corrected ring positions for pyrimidines.

restraints 
   dihedral
      reset
      nassign=500

assign (resid 10 and name  O4' and segid SL19)
       (resid 10 and name  C1' and segid SL19)
       (resid 10 and name  N1  and segid SL19)
       (resid 10 and name  C2  and segid SL19)  1.0  -130.0  40.0  2

assign (resid 11 and name  O4' and segid SL19)
       (resid 11 and name  C1' and segid SL19)
       (resid 11 and name  N1  and segid SL19)
       (resid 11 and name  C2  and segid SL19)  1.0  -130.0  40.0  2

assign (resid 12 and name  O4' and segid SL19)
       (resid 12 and name  C1' and segid SL19)
       (resid 12 and name  N1  and segid SL19)
       (resid 12 and name  C2  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 14 and name  O4' and segid SL19)
       (resid 14 and name  C1' and segid SL19)
       (resid 14 and name  N9  and segid SL19)
       (resid 14 and name  C4  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 15 and name  O4' and segid SL19)
       (resid 15 and name  C1' and segid SL19)
       (resid 15 and name  N9  and segid SL19)
       (resid 15 and name  C4  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 16 and name  O4' and segid SL19)
       (resid 16 and name  C1' and segid SL19)
       (resid 16 and name  N9  and segid SL19)
       (resid 16 and name  C4  and segid SL19)  1.0  60.0  30.0  2

assign (resid 17 and name  O4' and segid SL19)
       (resid 17 and name  C1' and segid SL19)
       (resid 17 and name  N1  and segid SL19)
       (resid 17 and name  C2  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 18 and name  O4' and segid SL19)
       (resid 18 and name  C1' and segid SL19)
       (resid 18 and name  N1  and segid SL19)
       (resid 18 and name  C2  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 21 and name  O4' and segid SL19)
       (resid 21 and name  C1' and segid SL19)
       (resid 21 and name  N9  and segid SL19)
       (resid 21 and name  C4  and segid SL19)  1.0  -130.0 40.0  2

assign (resid 23 and name  O4' and segid SL19)
       (resid 23 and name  C1' and segid SL19)
       (resid 23 and name  N9  and segid SL19)
       (resid 23 and name  C4  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 24 and name  O4' and segid SL19)
       (resid 24 and name  C1' and segid SL19)
       (resid 24 and name  N1  and segid SL19)
       (resid 24 and name  C2  and segid SL19)  1.0  -120.0  70.0  2

assign (resid 25 and name  O4' and segid SL19)
       (resid 25 and name  C1' and segid SL19)
       (resid 25 and name  N9  and segid SL19)
       (resid 25 and name  C4  and segid SL19)  1.0  -130.0 40.0  2

assign (resid 26 and name  O4' and segid SL19)
       (resid 26 and name  C1' and segid SL19)
       (resid 26 and name  N9  and segid SL19)
       (resid 26 and name  C4  and segid SL19)  1.0  -130.0 40.0  2

    scale=$kcdi
  end
flags include cdih end

  Entry H atom name         Submitted Coord H atom name
    1   1H5*    U   8          1H5*        U   8  14.035  -5.274  35.213
    2   2H5*    U   8          2H5*        U   8  13.463  -3.628  34.880
    3    H4*    U   8           H4*        U   8  14.241  -4.696  32.809
    4    H3*    U   8           H3*        U   8  11.233  -4.296  33.019
    5   1H2*    U   8          1H2*        U   8  11.089  -5.006  30.751
    6   2HO*    U   8          2HO*        U   8  12.606  -4.520  29.468
    7    H1*    U   8           H1*        U   8  12.909  -7.000  30.986
    8    H3     U   8           H3         U   8   8.906  -8.992  30.186
    9    H5     U   8           H5         U   8   8.626  -7.798  34.207
   10    H6     U   8           H6         U   8  10.754  -6.651  33.950
   11    H5T    U   8           H5T        U   8  11.344  -4.376  34.984
   12   1H5*    U   9          1H5*        U   9  13.201  -2.642  29.441
   13   2H5*    U   9          2H5*        U   9  12.473  -1.102  28.936
   14    H4*    U   9           H4*        U   9  12.562  -2.680  27.057
   15    H3*    U   9           H3*        U   9   9.800  -2.093  28.176
   16   1H2*    U   9          1H2*        U   9   8.972  -3.276  26.176
   17   2HO*    U   9          2HO*        U   9  10.023  -3.235  24.564
   18    H1*    U   9           H1*        U   9  10.601  -5.310  26.531
   19    H3     U   9           H3         U   9   6.406  -6.558  27.764
   20    H5     U   9           H5         U   9   7.896  -4.576  31.143
   21    H6     U   9           H6         U   9   9.816  -3.906  29.818
   22   1H5*    A  10          1H5*        A  10  10.379  -1.309  24.150
   23   2H5*    A  10          2H5*        A  10   9.516   0.058  23.413
   24    H4*    A  10           H4*        A  10   9.022  -2.002  22.201
   25    H3*    A  10           H3*        A  10   6.864  -0.697  23.840
   26   1H2*    A  10          1H2*        A  10   5.273  -2.340  23.174
   27   2HO*    A  10          2HO*        A  10   5.380  -3.060  21.376
   28    H1*    A  10           H1*        A  10   6.844  -4.441  23.487
   29    H8     A  10           H8         A  10   7.624  -1.933  26.303
   30   1H6     A  10          1H6         A  10   4.102  -3.305  29.279
   31   2H6     A  10          2H6         A  10   2.646  -4.274  29.088
   32    H2     A  10           H2         A  10   2.764  -5.877  24.916
   33   1H5*    C  11          1H5*        C  11   5.151  -1.669  20.030
   34   2H5*    C  11          2H5*        C  11   4.091  -0.336  19.519
   35    H4*    C  11           H4*        C  11   2.787  -2.386  19.679
   36    H3*    C  11           H3*        C  11   2.289  -0.360  21.894
   37   1H2*    C  11          1H2*        C  11   0.329  -1.700  22.398
   38   2HO*    C  11          2HO*        C  11  -0.481  -2.870  20.943
   39    H1*    C  11           H1*        C  11   1.759  -3.940  22.498
   40   1H4     C  11          1H4         C  11   3.097  -0.181  27.809
   41   2H4     C  11          2H4         C  11   1.668  -1.154  28.170
   42    H5     C  11           H5         C  11   4.028  -0.085  25.525
   43    H6     C  11           H6         C  11   3.861  -1.029  23.302
   44   1H5*    C  12          1H5*        C  12  -1.176  -1.644  19.945
   45   2H5*    C  12          2H5*        C  12  -2.248  -0.293  19.558
   46    H4*    C  12           H4*        C  12  -3.481  -2.148  20.600
   47    H3*    C  12           H3*        C  12  -3.248   0.441  22.168
   48   1H2*    C  12          1H2*        C  12  -4.848  -0.569  23.752
   49   2HO*    C  12          2HO*        C  12  -6.090  -1.447  22.184
   50    H1*    C  12           H1*        C  12  -3.520  -2.877  23.891
   51   1H4     C  12          1H4         C  12   0.314   1.267  27.388
   52   2H4     C  12          2H4         C  12  -0.930   0.687  28.482
   53    H5     C  12           H5         C  12   0.254   0.809  24.967
   54    H6     C  12           H6         C  12  -0.961  -0.382  23.203
   55   1H5*    C  13          1H5*        C  13  -8.589  -0.873  22.920
   56   2H5*    C  13          2H5*        C  13  -8.917   0.567  21.949
   57    H4*    C  13           H4*        C  13  -8.988   0.916  24.460
   58    H3*    C  13           H3*        C  13  -6.755   2.461  23.075
   59   1H2*    C  13          1H2*        C  13  -6.736   3.649  25.207
   60   2HO*    C  13          2HO*        C  13  -8.298   3.705  26.304
   61    H1*    C  13           H1*        C  13  -6.833   1.304  26.597
   62   1H4     C  13          1H4         C  13  -0.944   3.614  26.289
   63   2H4     C  13          2H4         C  13  -0.816   3.266  24.579
   64    H5     C  13           H5         C  13  -2.627   2.308  23.306
   65    H6     C  13           H6         C  13  -4.929   1.540  23.417
   66   1H5*    A  14          1H5*        A  14  -9.570   4.621  25.167
   67   2H5*    A  14          2H5*        A  14  -9.924   6.319  24.762
   68    H4*    A  14           H4*        A  14  -9.306   6.013  27.095
   69    H3*    A  14           H3*        A  14  -7.532   7.691  25.351
   70   1H2*    A  14          1H2*        A  14  -6.066   8.071  27.198
   71   2HO*    A  14          2HO*        A  14  -7.700   8.533  28.578
   72    H1*    A  14           H1*        A  14  -6.281   5.571  28.329
   73    H8     A  14           H8         A  14  -5.490   5.486  24.515
   74   1H6     A  14          1H6         A  14  -0.114   5.932  27.125
   75   2H6     A  14          2H6         A  14   0.544   5.717  26.024
   76    H2     A  14           H2         A  14  -2.316   6.327  30.030
   77   1H5*    A  15          1H5*        A  15  -7.317  11.965  27.729
   78   2H5*    A  15          2H5*        A  15  -6.600  10.696  26.719
   79    H4*    A  15           H4*        A  15  -6.197  10.971  29.714
   80    H3*    A  15           H3*        A  15  -4.452  11.660  27.314
   81   1H2*    A  15          1H2*        A  15  -2.608  11.548  28.995
   82   2HO*    A  15          2HO*        A  15  -4.316  12.262  30.694
   83    H1*    A  15           H1*        A  15  -3.468   9.109  29.742
   84    H8     A  15           H8         A  15  -4.443   8.931  26.146
   85   1H6     A  15          1H6         A  15   0.050   8.034  24.181
   86   2H6     A  15          2H6         A  15   1.629   8.154  24.944
   87    H2     A  15           H2         A  15   1.266   9.497  29.051
   88   1H5*    G  16          1H5*        G  16  -3.879  14.829  24.831
   89   2H5*    G  16          2H5*        G  16  -4.248  13.139  25.215
   90    H4*    G  16           H4*        G  16  -1.980  13.434  24.274
   91    H3*    G  16           H3*        G  16  -2.565  11.819  26.395
   92   1H2*    G  16          1H2*        G  16  -2.023  13.518  28.045
   93   2HO*    G  16          2HO*        G  16  -0.157  11.526  27.725
   94    H1*    G  16           H1*        G  16   0.465  13.968  26.402
   95    H8     G  16           H8         G  16   1.897  15.215  27.938
   96    H1     G  16           H1         G  16  -2.830  18.766  30.409
   97   1H2     G  16          1H2         G  16  -4.876  16.650  28.541
   98   2H2     G  16          2H2         G  16  -4.815  18.160  29.457
   99   1H5*    U  17          1H5*        U  17   2.733  10.796  25.948
  100   2H5*    U  17          2H5*        U  17   1.695  11.404  27.253
  101    H4*    U  17           H4*        U  17   4.248  12.716  26.275
  102    H3*    U  17           H3*        U  17   3.584  10.881  28.574
  103   1H2*    U  17          1H2*        U  17   4.020  12.351  30.074
  104   2HO*    U  17          2HO*        U  17   6.151  11.855  30.033
  105    H1*    U  17           H1*        U  17   5.040  14.384  28.134
  106    H3     U  17           H3         U  17   4.562  17.479  31.384
  107    H5     U  17           H5         U  17   1.273  14.947  32.038
  108    H6     U  17           H6         U  17   2.046  13.581  30.206
  109   1H5*    U  18          1H5*        U  18   7.518   9.794  29.207
  110   2H5*    U  18          2H5*        U  18   7.515   8.126  29.804
  111    H4*    U  18           H4*        U  18   7.434   9.838  31.621
  112    H3*    U  18           H3*        U  18   4.955   8.159  31.276
  113   1H2*    U  18          1H2*        U  18   4.185   9.144  33.309
  114   2HO*    U  18          2HO*        U  18   6.354   8.723  34.189
  115    H1*    U  18           H1*        U  18   5.579  11.591  32.761
  116    H3     U  18           H3         U  18   1.579  13.057  33.928
  117    H5     U  18           H5         U  18   0.630  10.405  30.826
  118    H6     U  18           H6         U  18   2.990   9.839  30.683
  119   1H5*    U  19          1H5*        U  19   5.145   7.799  34.976
  120   2H5*    U  19          2H5*        U  19   4.606   6.342  35.820
  121    H4*    U  19           H4*        U  19   2.823   8.044  35.805
  122    H3*    U  19           H3*        U  19   2.491   5.488  34.279
  123   1H2*    U  19          1H2*        U  19   0.363   6.095  33.494
  124   2HO*    U  19          2HO*        U  19  -0.495   6.683  35.290
  125    H1*    U  19           H1*        U  19   0.828   8.766  33.168
  126    H3     U  19           H3         U  19  -0.154   6.804  29.137
  127    H5     U  19           H5         U  19   3.929   6.105  29.715
  128    H6     U  19           H6         U  19   3.653   6.942  32.008
  129   1H5*    G  20          1H5*        G  20  -0.567   6.396  37.395
  130   2H5*    G  20          2H5*        G  20  -1.356   5.317  38.545
  131    H4*    G  20           H4*        G  20  -2.634   5.245  36.521
  132    H3*    G  20           H3*        G  20  -1.076   2.863  37.380
  133   1H2*    G  20          1H2*        G  20  -0.664   2.194  35.312
  134   2HO*    G  20          2HO*        G  20  -3.223   1.824  36.012
  135    H1*    G  20           H1*        G  20  -2.814   4.105  34.260
  136    H8     G  20           H8         G  20   1.017   3.620  33.599
  137    H1     G  20           H1         G  20  -2.710   3.158  28.387
  138   1H2     G  20          1H2         G  20  -4.865   3.142  29.069
  139   2H2     G  20          2H2         G  20  -5.280   3.834  30.638
  140   1H5*    A  21          1H5*        A  21  -5.210   4.385  37.049
  141   2H5*    A  21          2H5*        A  21  -6.451   4.643  38.282
  142    H4*    A  21           H4*        A  21  -7.753   2.780  37.405
  143    H3*    A  21           H3*        A  21  -5.372   2.331  35.578
  144   1H2*    A  21          1H2*        A  21  -6.691   1.967  33.813
  145   2HO*    A  21          2HO*        A  21  -7.751   0.201  34.782
  146    H1*    A  21           H1*        A  21  -9.064   3.189  35.012
  147    H8     A  21           H8         A  21  -6.288   5.456  33.771
  148   1H6     A  21          1H6         A  21  -8.796   4.795  28.191
  149   2H6     A  21          2H6         A  21  -8.041   6.054  29.130
  150    H2     A  21           H2         A  21 -10.982   2.116  30.900
  151   1H5*    G  22          1H5*        G  22  -7.563  -1.569  37.250
  152   2H5*    G  22          2H5*        G  22  -6.739  -3.129  37.347
  153    H4*    G  22           H4*        G  22  -8.007  -2.822  35.219
  154    H3*    G  22           H3*        G  22  -4.983  -2.916  34.847
  155   1H2*    G  22          1H2*        G  22  -5.705  -3.374  32.490
  156   2HO*    G  22          2HO*        G  22  -7.444  -4.610  33.171
  157    H1*    G  22           H1*        G  22  -7.393  -1.270  32.566
  158    H8     G  22           H8         G  22  -4.398   0.032  34.498
  159    H1     G  22           H1         G  22  -3.286  -0.757  28.242
  160   1H2     G  22          1H2         G  22  -6.406  -2.344  28.299
  161   2H2     G  22          2H2         G  22  -4.952  -1.995  27.355
  162   1H5*    G  23          1H5*        G  23  -6.319  -7.685  32.835
  163   2H5*    G  23          2H5*        G  23  -7.179  -6.150  32.948
  164    H4*    G  23           H4*        G  23  -7.056  -6.848  30.622
  165    H3*    G  23           H3*        G  23  -4.085  -7.101  31.194
  166   1H2*    G  23          1H2*        G  23  -3.777  -6.664  28.836
  167   2HO*    G  23          2HO*        G  23  -5.356  -8.051  28.309
  168    H1*    G  23           H1*        G  23  -5.569  -4.680  28.700
  169    H8     G  23           H8         G  23  -3.859  -3.773  31.909
  170    H1     G  23           H1         G  23  -0.073  -3.082  26.805
  171   1H2     G  23          1H2         G  23  -2.520  -5.045  25.174
  172   2H2     G  23          2H2         G  23  -0.988  -4.175  25.046
  173   1H5*    U  24          1H5*        U  24  -5.459  -9.280  27.130
  174   2H5*    U  24          2H5*        U  24  -4.733 -10.884  27.355
  175    H4*    U  24           H4*        U  24  -4.029  -9.929  25.207
  176    H3*    U  24           H3*        U  24  -1.902 -10.140  27.355
  177   1H2*    U  24          1H2*        U  24  -0.328  -9.547  25.607
  178   2HO*    U  24          2HO*        U  24  -0.753 -10.074  23.716
  179    H1*    U  24           H1*        U  24  -1.760  -7.519  24.706
  180    H3     U  24           H3         U  24   1.563  -5.557  27.090
  181    H5     U  24           H5         U  24  -1.194  -6.795  30.019
  182    H6     U  24           H6         U  24  -2.416  -7.958  28.288
  183   1H5*    A  25          1H5*        A  25  -1.150 -11.973  23.573
  184   2H5*    A  25          2H5*        A  25  -0.231 -13.487  23.599
  185    H4*    A  25           H4*        A  25   0.711 -11.880  22.000
  186    H3*    A  25           H3*        A  25   2.382 -12.569  24.431
  187   1H2*    A  25          1H2*        A  25   4.171 -11.165  23.448
  188   2HO*    A  25          2HO*        A  25   3.167 -12.029  21.359
  189    H1*    A  25           H1*        A  25   2.593  -9.093  23.010
  190    H8     A  25           H8         A  25   1.064 -10.949  25.986
  191   1H6     A  25          1H6         A  25   3.527  -8.777  29.463
  192   2H6     A  25          2H6         A  25   4.806  -7.571  29.511
  193    H2     A  25           H2         A  25   6.027  -6.922  25.238
  194   1H5*    A  26          1H5*        A  26   4.900 -12.660  21.170
  195   2H5*    A  26          2H5*        A  26   6.199 -13.869  21.161
  196    H4*    A  26           H4*        A  26   7.110 -11.579  21.271
  197    H3*    A  26           H3*        A  26   7.441 -13.209  23.837
  198   1H2*    A  26          1H2*        A  26   9.014 -11.401  24.440
  199   2HO*    A  26          2HO*        A  26   9.399 -11.399  21.993
  200    H1*    A  26           H1*        A  26   7.229  -9.461  23.732
  201    H8     A  26           H8         A  26   5.026 -12.198  25.194
  202   1H6     A  26          1H6         A  26   5.675 -11.088  29.971
  203   2H6     A  26          2H6         A  26   6.796 -10.008  30.782
  204    H2     A  26           H2         A  26   9.321  -8.123  27.646
  205    H3T    A  26           H3T        A  26   8.340 -13.952  21.731
   
  No H/Q in entry =         205