






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              base-pair in the poly d(G). poly (C) duplex.  Successive                

              base-pairs can be generated by adding multiples of 32.0 degrees         

              to phi and the same multiple of 0.278 nm to z.                          
1




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


            PHOSPHATE   P        0.3343    0.8203   -0.3784    0.8858     67.83
                        O1       0.2147    0.7331   -0.3770    0.7639     73.68
                        O2       0.3512    0.9053   -0.4983    0.9710     68.80
                        O3       0.3355    0.9118   -0.2471    0.9716     69.80
                        O5       0.4656    0.7316   -0.3564    0.8672     57.53


            SUGAR       C1       0.7175    0.5047   -0.1760    0.8772     35.12
                        C2       0.7708    0.4685   -0.3142    0.9020     31.29
                        C3       0.7008    0.5718   -0.4022    0.9045     39.21
                        C4       0.7010    0.6956   -0.3125    0.9875     44.78
                        C5       0.5926    0.7977   -0.3406    0.9937     53.39
                        O4       0.6814    0.6419   -0.1785    0.9362     43.29
                        H1       0.7963    0.4911   -0.1019    0.9356     31.66
                        H12      0.9347    0.5775   -0.3735    1.0987     31.71
                        H22      0.7368    0.3685   -0.3413    0.8238     26.57
                        H3       0.5981    0.5413   -0.4220    0.8067     42.15
                        H4       0.7986    0.7439   -0.3173    1.0914     42.97
                        H15      0.6167    0.8523   -0.4318    1.0520     54.11
                        H25      0.5868    0.8683   -0.2577    1.0479     55.95


            GUANINE     N1       0.5496    0.0496   -0.0200    0.5519      5.16
                        C2       0.6776    0.0908   -0.0507    0.6837      7.63
                        N2       0.7736   -0.0012   -0.0382    0.7736     -0.09
                        N3       0.7072    0.2143   -0.0907    0.7390     16.86
                        C4       0.5972    0.2939   -0.0975    0.6656     26.20
                        C5       0.4666    0.2617   -0.0690    0.5350     29.29
                        C6       0.4350    0.1301   -0.0264    0.4541     16.65
                        O6       0.3256    0.0830    0.0033    0.3360     14.30
                        N7       0.3836    0.3720   -0.0887    0.5344     44.12
                        C8       0.4658    0.4663   -0.1280    0.6591     45.03
                        N9       0.5974    0.4263   -0.1357    0.7339     35.51
                        H1       0.5376   -0.0452    0.0092    0.5395     -4.81
                        H12      0.7504   -0.0937   -0.0081    0.7563     -7.12
                        H22      0.8678    0.0223   -0.0589    0.8681      1.47
                        H8       0.4356    0.5590   -0.1503    0.7087     52.07


            PHOSPHATE   P        0.3343   -0.8203    0.3784    0.8858    -67.83
                        O1       0.2147   -0.7331    0.3770    0.7639    -73.68
                        O2       0.3512   -0.9053    0.4983    0.9710    -68.80
                        O3       0.3355   -0.9118    0.2471    0.9716    -69.80
                        O5       0.4656   -0.7316    0.3537    0.8672    -57.53


            RIBOSE      C1       0.7175   -0.5047    0.1760    0.8772    -35.12
                        C2       0.7708   -0.4685    0.3142    0.9020    -31.29
                        C3       0.7008   -0.5718    0.4022    0.9045    -39.21
                        C4       0.7010   -0.6956    0.3125    0.9875    -44.78
                        C5       0.5926   -0.7977    0.3406    0.9937    -53.39
                        O4       0.6814   -0.6419    0.1785    0.9362    -43.29
                        O2       0.9106   -0.4912    0.3116    1.0347    -28.34
                        H1       0.7963   -0.4911    0.1019    0.9356    -31.66
                        H2       0.7368    0.3685   -0.3413    0.8238     26.57
                        H3       0.5981   -0.5413    0.4220    0.8067    -42.15
                        H4       0.7986   -0.7439    0.3173    1.0914    -42.97
                        H15      0.6167    0.8523   -0.4318    1.0520     54.11
                        H25      0.5868    0.8683   -0.2577    1.0479     55.95


            CYTOSINE    N1       0.5974   -0.4263    0.1357    0.7339    -35.51
                        C2       0.6159   -0.2930    0.1000    0.6820    -25.44
                        O2       0.7302   -0.2456    0.1031    0.7704    -18.59
                        N3       0.5077   -0.2197    0.0629    0.5532    -23.40
                        C4       0.3856   -0.2747    0.0609    0.4734    -35.46
                        N4       0.2834   -0.1991    0.0240    0.3463    -35.09
                        C5       0.3644   -0.4116    0.0973    0.5498    -48.48
                        C6       0.4738   -0.4830    0.1340    0.6766    -45.55
                        H14      0.2984   -0.1035   -0.0013    0.3158    -19.13
                        H24      0.1911   -0.2376    0.0216    0.3049    -51.19
                        H5       0.2733   -0.4526    0.0958    0.5287    -58.88
                        H6       0.4635   -0.5789    0.1602    0.7416    -51.32


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