ID code:  '5GUH'


 CHIRALITY                                       (03 Nov 1998)

 Checks the chirality and the naming of substituents of chiral
 and prochiral centers in nucleic acid structures.
 The molecular structure is read from a PDB file.
 Only the first model is evaluated.


   ----------------------------------------------------------
     Center     Reference for correct naming                 
   ----------------------------------------------------------
      C1'       alpha/beta nomenclature of anomeric sugars,  
                base in beta position in natural nucleosids. 
      C2'       IUPAC. 1983. Eur J Biochem, 131: 9-15.       
      C3'       IUPAC. 1983. Eur J Biochem, 131: 9-15.       
      C4'       IUPAC. 1983. Eur J Biochem, 131: 9-15.       
      C5'       IUPAC. 1983. Eur J Biochem, 131: 9-15.       
      P         Brookhaven PDB entry '1BNA',                 
                O1P -> major groove,  O2P -> minor groove.   
   ----------------------------------------------------------

 Author:   Peter Slickers (slickers@imb-jena.de)
           Biocomputing, IMB Jena,  Germany




---------------------------------------------------------------------------------
Seq No   Atom    Residue           H1'       base        O4'    H1'   base    C2'
---------------------------------------------------------------------------------
 5842    C1'     U   B   1                   beta       5837          5843   5840  
 5862    C1'     A   B   2                   beta       5857          5863   5860  
 5884    C1'     U   B   3                   beta       5879          5885   5882  
 5904    C1'     U   B   4                   beta       5899          5905   5902  
 5924    C1'     U   B   5                   beta       5919          5925   5922  
 5944    C1'     U   B  26                   beta       5939          5945   5942  
 5964    C1'     U   B  27                   beta       5959          5965   5962  
 5981    C1'     OMU B  28                   beta       5988          5973   5982  
---------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------------------
Seq No   Atom    Residue            Deoxyribose              Ribose            C1'    C3'   H2'1   H2'2    H2'    O2'
                                  H2'1       H2'2        H2'        O2'                      
---------------------------------------------------------------------------------------------------------------------
 5840    C2'     U   B   1                                          OK        5842   5838                        5841  
 5860    C2'     A   B   2                                          OK        5862   5858                        5861  
 5882    C2'     U   B   3                                          OK        5884   5880                        5883  
 5902    C2'     U   B   4                                          OK        5904   5900                        5903  
 5922    C2'     U   B   5                                          OK        5924   5920                        5923  
 5942    C2'     U   B  26                                          OK        5944   5940                        5943  
 5962    C2'     U   B  27                                          OK        5964   5960                        5963  
 5982    C2'     OMU B  28                                          OK        5981   5985                        5983  
---------------------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------
Seq No   Atom    Residue           H3'        O3'        C4'    H3'    O3'    C2'
---------------------------------------------------------------------------------
 5838    C3'     U   B   1                    OK        5836          5839   5840  
 5858    C3'     A   B   2                    OK        5856          5859   5860  
 5880    C3'     U   B   3                    OK        5878          5881   5882  
 5900    C3'     U   B   4                    OK        5898          5901   5902  
 5920    C3'     U   B   5                    OK        5918          5921   5922  
 5940    C3'     U   B  26                    OK        5938          5941   5942  
 5960    C3'     U   B  27                    OK        5958          5961   5962  
 5985    C3'     OMU B  28                    OK        5986          5987   5982  
---------------------------------------------------------------------------------

---------------------------------------------------------------------------------
Seq No   Atom    Residue           H4'        C5'        C3'    H4'    C5'    O4'
---------------------------------------------------------------------------------
 5836    C4'     U   B   1                    OK        5838          5835   5837  
 5856    C4'     A   B   2                    OK        5858          5855   5857  
 5878    C4'     U   B   3                    OK        5880          5877   5879  
 5898    C4'     U   B   4                    OK        5900          5897   5899  
 5918    C4'     U   B   5                    OK        5920          5917   5919  
 5938    C4'     U   B  26                    OK        5940          5937   5939  
 5958    C4'     U   B  27                    OK        5960          5957   5959  
 5986    C4'     OMU B  28                    OK        5985          5989   5988  
---------------------------------------------------------------------------------

---------------------------------------------------------------------------------
Seq No   Atom    Residue          H5'1       H5'2        O5'   H5'1   H5'2    C4'
---------------------------------------------------------------------------------
 5835    C5'     U   B   1                              5834                 5836  
 5855    C5'     A   B   2                              5854                 5856  
 5877    C5'     U   B   3                              5876                 5878  
 5897    C5'     U   B   4                              5896                 5898  
 5917    C5'     U   B   5                              5916                 5918  
 5937    C5'     U   B  26                              5936                 5938  
 5957    C5'     U   B  27                              5956                 5958  
 5989    C5'     OMU B  28                              5990                 5986  
---------------------------------------------------------------------------------

---------------------------------------------------------------------------------
Seq No   Atom    Residue          O1P        O2P         O3'    O1P    O2P    O5'
---------------------------------------------------------------------------------
 5831    P       U   B   1         OK         OK               5832   5833   5834  
 5851    P       A   B   2     distorted  distorted     5839   5852   5853   5854  
 5873    P       U   B   3     distorted  distorted     5859   5874   5875   5876  
 5893    P       U   B   4     distorted  distorted     5881   5894   5895   5896  
 5913    P       U   B   5     distorted  distorted     5901   5914   5915   5916  
 5933    P       U   B  26     distorted  distorted            5934   5935   5936  
 5953    P       U   B  27     distorted  distorted     5941   5954   5955   5956  
 5991    P       OMU B  28     distorted  distorted     5961   5992   5993   5990  
---------------------------------------------------------------------------------