






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              dinucleotide in the B-form of poly d(GC). poly d(GC).  The              

              coordinates of the diadically related dinucleotide in the               

              antiparallel chain are given by r, -phi, -z.  Successive                

              dinucleotides can be generated by adding multiples of 72.0              

              degrees to phi and the same multiple of 0.672 nm to z.                  
1




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


             PHOSPHATE  P       -0.3569    0.8509    0.3017    0.9227    112.76
                        O1      -0.3975    0.9811    0.3594    1.0585    112.05
                        O2      -0.4549    0.7865    0.2115    0.9086    120.04
                        O3      -0.3179    0.7499    0.4195    0.8145    112.98
                        O5      -0.2168    0.8670    0.2262    0.8937    104.04


             SUGAR      C1      -0.0446    0.5502    0.1402    0.5520     94.63
                        C2      -0.0907    0.6575    0.0422    0.6637     97.86
                        C3       0.0126    0.7607    0.0874    0.7608     89.05
                        C4      -0.0045    0.7511    0.2390    0.7512     90.34
                        C5      -0.0949    0.8553    0.3020    0.8606     96.33
                        O4      -0.0453    0.6141    0.2669    0.6158     94.22
                        H1       0.0604    0.5270    0.1220    0.5305     83.47
                        H12     -0.0714    0.6298   -0.0615    0.6338     96.47
                        H22     -0.1909    0.6940    0.0650    0.7197    105.38
                        H3      -0.0085    0.8625    0.0548    0.8626     90.57
                        H4       0.0934    0.7542    0.2869    0.7600     82.94
                        H15     -0.0438    0.9516    0.3036    0.9526     92.63
                        H25     -0.1184    0.8261    0.4043    0.8345     98.15


             CYTOSINE   N1      -0.1250    0.4249    0.1340    0.4429    106.39
                        C2      -0.0580    0.3040    0.1501    0.3095    100.80
                        O2       0.0643    0.3055    0.1687    0.3122     78.11
                        N3      -0.1294    0.1886    0.1448    0.2287    124.46
                        C4      -0.2617    0.1912    0.1245    0.3241    143.85
                        N4      -0.3269    0.0760    0.1201    0.3356    166.91
                        C5      -0.3331    0.3155    0.1076    0.4588    136.55
                        C6      -0.2598    0.4296    0.1132    0.5021    121.17
                        H14     -0.2773   -0.0100    0.1319    0.2774   -177.94
                        H24     -0.4258    0.0751    0.1051    0.4323    170.00
                        H5      -0.4319    0.3175    0.0924    0.5360    143.68
                        H6      -0.3054    0.5179    0.1020    0.6012    120.53


             PHOSPHATE  P        0.2589    0.8411    0.0596    0.8801     72.89
                        O1       0.2930    0.8704    0.2006    0.9184     71.39
                        O2       0.2162    0.9568   -0.0223    0.9809     77.27
                        O3       0.1467    0.7272    0.0541    0.7418     78.59
                        O5       0.3821    0.7677   -0.0114    0.8575     63.54


             SUGAR      C1       0.3426    0.4442   -0.1956    0.5610     52.36
                        C2       0.3719    0.5829   -0.2520    0.6914     57.46
                        C3       0.5100    0.6078   -0.1912    0.7934     50.00
                        C4       0.4870    0.5530   -0.0503    0.7369     48.63
                        C5       0.4424    0.6541    0.0534    0.7897     55.93
                        O4       0.3952    0.4407   -0.0639    0.5919     48.11
                        H1       0.4021    0.3700   -0.2488    0.5465     42.62
                        H12      0.3803    0.5780   -0.3605    0.6919     56.65
                        H22      0.3009    0.6552   -0.2118    0.7210     65.33
                        H3       0.5381    0.7129   -0.1852    0.8932     52.96
                        H4       0.5774    0.5029   -0.0157    0.7657     41.05
                        H15      0.5285    0.6869    0.1116    0.8667     52.43
                        H25      0.3700    0.6079    0.1205    0.7116     58.67


             GUANINE    N1       0.0116    0.0578   -0.1686    0.0590     78.64
                        C2       0.1493    0.0574   -0.1574    0.1599     21.02
                        N2       0.2060   -0.0616   -0.1362    0.2150    -16.66
                        N3       0.2237    0.1673   -0.1667    0.2794     36.79
                        C4       0.1487    0.2786   -0.1882    0.3158     61.90
                        C5       0.0122    0.2886   -0.2007    0.2889     87.59
                        C6      -0.0674    0.1715   -0.1908    0.1843    111.44
                        O6      -0.1894    0.1604   -0.1991    0.2482    139.74
                        N7      -0.0255    0.4211   -0.2222    0.4219     93.46
                        C8       0.0883    0.4863   -0.2220    0.4942     79.71
                        N9       0.1986    0.4063   -0.2020    0.4522     63.94
                        H1      -0.0355   -0.0300   -0.1602    0.0465   -139.82
                        H12      0.3053   -0.0688   -0.1272    0.3129    -12.70
                        H22      0.1491   -0.1436   -0.1294    0.2070    -43.93
                        H8       0.0946    0.5852   -0.2353    0.5928     80.82


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