






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              nucleotide in the poly (ethyl C) single helix.  Successive              

              nucleotides can be generated by adding multiples of 60.0                

              degrees to phi and the same multiple of 0.3155 nm to z.                 
1




            --------------------------------------------------------------------
             Group      Atom      x(nm)     y(nm)     z(nm)     r(nm)   phi(deg)
            --------------------------------------------------------------------


            PHOSPHATE   P       -0.2062    0.4147    0.3227    0.4631    116.44
                        O1      -0.2584    0.2762    0.3207    0.3782    133.09
                        O2      -0.2443    0.4996    0.2076    0.5561    116.06
                        O3      -0.2496    0.4864    0.4590    0.5467    117.17
                        O5      -0.0470    0.4121    0.3377    0.4148     96.50


            RIBOSE      C1       0.2887    0.3719    0.4972    0.4708     52.18
                        C2       0.3604    0.3668    0.3627    0.5142     45.50
                        C3       0.2486    0.4072    0.2668    0.4771     58.59
                        C4       0.1733    0.5125    0.3480    0.5410     71.32
                        C5       0.0275    0.5325    0.3112    0.5332     87.04
                        O4       0.1808    0.4633    0.4850    0.4973     68.68
                        O2       0.4618    0.4657    0.3663    0.6558     45.24
                        C6       0.5912    0.4160    0.3314    0.7229     35.13
                        C7       0.6896    0.5187    0.3162    0.8629     36.95
                        H1       0.3515    0.4060    0.5673    0.5370     49.11
                        H2       0.3890    0.2728    0.3440    0.4751     35.04
                        H3       0.1888    0.3292    0.2482    0.3795     60.17
                        H4       0.2214    0.5999    0.3422    0.6395     69.74
                        H15      0.0206    0.5553    0.2141    0.5557     87.88
                        H25     -0.0104    0.6066    0.3650    0.6067     90.98
                        H16      0.6233    0.3535    0.4027    0.7166     29.56
                        H26      0.5857    0.3661    0.2447    0.6907     32.01
                        H17      0.6557    0.5894    0.2541    0.8817     41.95
                        H27      0.7738    0.4800    0.2786    0.9106     31.81
                        H37      0.7096    0.5602    0.4049    0.9041     38.29


            CYTOSINE    N1       0.2331    0.2406    0.5405    0.3350     45.91
                        C2       0.3210    0.1486    0.5971    0.3537     24.85
                        O2       0.4401    0.1795    0.6089    0.4753     22.19
                        N3       0.2724    0.0283    0.6372    0.2739      5.94
                        C4       0.1426   -0.0011    0.6226    0.1426     -0.45
                        N4       0.1000   -0.1197    0.6633    0.1560    -50.13
                        C5       0.0507    0.0923    0.5646    0.1053     61.21
                        C6       0.1013    0.2118    0.5252    0.2348     64.43
                        H14      0.1655   -0.1836    0.7035    0.2472    -47.96
                        H24      0.0032   -0.1427    0.6528    0.1427    -88.71
                        H5      -0.0458    0.0679    0.5548    0.0819    124.00
                        H6       0.0413    0.2805    0.4841    0.2835     81.62


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