






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              dinucleotide in the Z-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 -60.0             

              degrees to phi and the same multiple of 0.725 nm to z.                  
1




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


            PHOSPHATE   P        0.0725    0.5825    0.6597    0.5870     82.91
                        O1      -0.0733    0.6049    0.6475    0.6093     96.91
                        O2       0.1329    0.6176    0.7902    0.6317     77.86
                        O3       0.1066    0.4303    0.6240    0.4433     76.09
                        O5       0.1487    0.6603    0.5425    0.6769     77.31


            SUGAR       C1       0.4157    0.6815    0.2056    0.7983     58.62
                        C2       0.3140    0.7069    0.0948    0.7735     66.05
                        C3       0.1783    0.6901    0.1630    0.7128     75.51
                        C4       0.2050    0.7098    0.3123    0.7388     73.89
                        C5       0.1248    0.6216    0.4059    0.6340     78.65
                        O4       0.3464    0.6788    0.3293    0.7620     62.96
                        H1       0.4871    0.7638    0.2089    0.9059     57.47
                        H12      0.3255    0.6308    0.0177    0.7098     62.70
                        H22      0.3245    0.8094    0.0595    0.8721     68.15
                        H3       0.1433    0.5884    0.1454    0.6056     76.31
                        H4       0.1894    0.8144    0.3385    0.8361     76.91
                        H15      0.1541    0.5176    0.3919    0.5400     73.42
                        H25      0.0186    0.6318    0.3833    0.6321     88.31


            GUANINE     N1       0.3685    0.1746    0.1860    0.4077     25.35
                        C2       0.2717    0.2719    0.2015    0.3844     45.02
                        N2       0.1461    0.2284    0.2134    0.2711     57.39
                        N3       0.2990    0.4022    0.2049    0.5011     53.37
                        C4       0.4318    0.4273    0.1913    0.6075     44.70
                        C5       0.5348    0.3375    0.1755    0.6323     32.26
                        C6       0.5059    0.1986    0.1719    0.5435     21.44
                        O6       0.5833    0.1042    0.1586    0.5925     10.13
                        N7       0.6568    0.4041    0.1651    0.7711     31.60
                        C8       0.6242    0.5307    0.1750    0.8193     40.37
                        N9       0.4891    0.5526    0.1911    0.7380     48.49
                        H1       0.3380    0.0793    0.1847    0.3472     13.21
                        H12      0.1267    0.1303    0.2107    0.1818     45.80
                        H22      0.0714    0.2938    0.2249    0.3024     76.35
                        H8       0.6913    0.6047    0.1711    0.9185     41.17


            PHOSPHATE   P       -0.0671    0.7317    0.0861    0.7347     95.24
                        O1      -0.1184    0.6609    0.2055    0.6714    100.16
                        O2      -0.1495    0.8443    0.0369    0.8575    100.04
                        O3       0.0821    0.7824    0.1137    0.7867     84.01
                        O5      -0.0434    0.6268   -0.0324    0.6283     93.96


            SUGAR       C1      -0.0305    0.2882   -0.1774    0.2898     96.04
                        C2      -0.0880    0.2998   -0.0366    0.3125    106.35
                        C3      -0.2101    0.3887   -0.0602    0.4418    118.39
                        C4      -0.1688    0.4784   -0.1770    0.5073    109.44
                        C5      -0.1372    0.6224   -0.1416    0.6373    102.43
                        O4      -0.0521    0.4151   -0.2369    0.4184     97.16
                        H1      -0.0835    0.2101   -0.2320    0.2261    111.68
                        H12     -0.0172    0.3518    0.0280    0.3522     92.80
                        H22     -0.1205    0.2018   -0.0018    0.2351    120.85
                        H3      -0.2403    0.4506    0.0243    0.5107    118.08
                        H4      -0.2462    0.4760   -0.2537    0.5359    117.35
                        H15     -0.2289    0.6737   -0.1128    0.7116    108.76
                        H25     -0.0943    0.6725   -0.2283    0.6791     97.98


            CYTOSINE    N1       0.1133    0.2605   -0.1801    0.2841     66.49
                        C2       0.1538    0.1273   -0.1794    0.1997     39.62
                        O2       0.0675    0.0387   -0.1765    0.0779     29.84
                        N3       0.2867    0.0996   -0.1819    0.3035     19.15
                        C4       0.3770    0.1984   -0.1849    0.4260     27.75
                        N4       0.5054    0.1661   -0.1872    0.5320     18.20
                        C5       0.3374    0.3361   -0.1857    0.4763     44.89
                        C6       0.2042    0.3617   -0.1832    0.4153     60.56
                        H14      0.5328    0.0700   -0.1867    0.5374      7.48
                        H24      0.5750    0.2379   -0.1895    0.6223     22.48
                        H5       0.4048    0.4099   -0.1880    0.5761     45.36
                        H6       0.1723    0.4565   -0.1836    0.4879     69.32


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