






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              nucleotide in the D-form of poly d(AAT). poly d(ATT).  The              

              coordinates of the diadically related nucleotide in the                 

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

              nucleotides can be generated by adding multiples of 45.0                

              degrees to phi and the same multiple of 0.3013 nm to z.                 
1




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


            PHOSPHATE   P       -0.2719    0.8029    0.3669    0.8477    108.71
                        O1      -0.2621    0.9338    0.4353    0.9699    105.68
                        O2      -0.3801    0.7898    0.2668    0.8765    115.70
                        O3      -0.2851    0.6863    0.4757    0.7431    112.56
                        O5      -0.1315    0.7672    0.2991    0.7784     99.73


            SUGAR       C1       0.0400    0.5115    0.1569    0.5131     85.53
                        C2       0.0483    0.6484    0.0902    0.6502     85.74
                        C3       0.1459    0.7212    0.1827    0.7358     78.56
                        C4       0.0912    0.6736    0.3173    0.6798     82.29
                        C5      -0.0133    0.7629    0.3813    0.7630     91.00
                        O4       0.0474    0.5362    0.2964    0.5383     84.95
                        H1       0.1305    0.4549    0.1350    0.4733     73.99
                        H12     -0.0492    0.6970    0.0949    0.6987     94.04
                        H22      0.0928    0.6380   -0.0087    0.6447     81.72
                        H3       0.1349    0.8293    0.1751    0.8402     80.76
                        H4       0.1737    0.6587    0.3869    0.6812     75.23
                        H15      0.0268    0.8636    0.3924    0.8640     88.22
                        H25     -0.0390    0.7240    0.4798    0.7250     93.08


            ADENINE     N1      -0.1342    0.0487    0.0171    0.1428    160.05
                        C2      -0.0130    0.0929    0.0503    0.0938     97.97
                        N3       0.0245    0.2140    0.0854    0.2154     83.46
                        C4      -0.0805    0.2987    0.0849    0.3093    105.08
                        C5      -0.2097    0.2683    0.0533    0.3405    128.01
                        C6      -0.2372    0.1353    0.0175    0.2731    150.29
                        N6      -0.3594    0.0915   -0.0159    0.3709    165.72
                        N7      -0.2901    0.3809    0.0640    0.4788    127.29
                        C8      -0.2082    0.4744    0.1011    0.5181    113.70
                        N9      -0.0793    0.4322    0.1159    0.4394    100.40
                        H2       0.0597    0.0243    0.0483    0.0645     22.15
                        H16     -0.3731   -0.0045   -0.0406    0.3731   -179.31
                        H26     -0.4369    0.1546   -0.0161    0.4635    160.51
                        H8      -0.2369    0.5688    0.1174    0.6162    112.61


            THYMINE     N1      -0.0793    0.4322    0.1159    0.4394    100.40
                        C2      -0.0595    0.2989    0.0889    0.3047    101.26
                        O2       0.0496    0.2451    0.0973    0.2501     78.57
                        N3      -0.1723    0.2286    0.0513    0.2862    127.00
                        C4      -0.3000    0.2793    0.0387    0.4099    137.04
                        O4      -0.3932    0.2065    0.0042    0.4441    152.30
                        C5      -0.3107    0.4201    0.0691    0.5225    126.49
                        ME      -0.4463    0.4833    0.0579    0.6579    132.72
                        C6      -0.2027    0.4908    0.1059    0.5310    112.44
                        H3      -0.1602    0.1314    0.0312    0.2072    140.64
                        H6      -0.2126    0.5882    0.1265    0.6254    109.87


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