






                                            TABLE








                 Cartesian and cylindrical polar coordinates of atoms in a            

              dinucleotide in the A-form of poly d(Abr5U). poly d(Abr5U).             

              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 65.5              

              degrees to phi and the same multiple of 0.5095 nm to z.                 
1




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


            PHOSPHATE   P        0.0611    0.8837   -0.2767    0.8858     86.04
                        O1       0.0636    0.9782   -0.3906    0.9803     86.28
                        O2      -0.0301    0.7679   -0.2904    0.7685     92.24
                        O3       0.0273    0.9630   -0.1419    0.9634     88.37
                        O5       0.2095    0.8319   -0.2467    0.8579     75.87


            SUGAR       C1       0.5019    0.6703   -0.0516    0.8373     53.17
                        C2       0.5750    0.6630   -0.1852    0.8777     49.06
                        C3       0.4833    0.7445   -0.2761    0.8876     57.01
                        C4       0.4413    0.8569   -0.1814    0.9639     62.75
                        C5       0.3122    0.9282   -0.2164    0.9793     71.41
                        O4       0.4255    0.7898   -0.0530    0.8971     61.69
                        H1       0.5746    0.6760    0.0294    0.8872     49.64
                        H12      0.5775    0.5596   -0.2193    0.8041     44.09
                        H22      0.6715    0.7131   -0.1765    0.9795     46.72
                        H3       0.3955    0.6865   -0.3048    0.7923     60.05
                        H4       0.5220    0.9298   -0.1734    1.0663     60.69
                        H15      0.3285    0.9924   -0.3030    1.0453     71.68
                        H25      0.2807    0.9898   -0.1322    1.0288     74.17


            ADENINE     N1       0.4627    0.1885    0.1165    0.4996     22.16
                        C2       0.5662    0.2716    0.1061    0.6280     25.63
                        N3       0.5692    0.3953    0.0616    0.6930     34.78
                        C4       0.4463    0.4355    0.0233    0.6235     44.30
                        C5       0.3313    0.3620    0.0280    0.4907     47.54
                        C6       0.3411    0.2311    0.0776    0.4120     34.12
                        N6       0.2364    0.1478    0.0878    0.2788     32.01
                        N7       0.2242    0.4363   -0.0197    0.4906     62.80
                        C8       0.2769    0.5506   -0.0512    0.6163     63.30
                        N9       0.4112    0.5576   -0.0280    0.6929     53.59
                        H2       0.6541    0.2348    0.1365    0.6949     19.75
                        H16      0.2494    0.0555    0.1240    0.2555     12.54
                        H26      0.1455    0.1780    0.0593    0.2299     50.74
                        H8       0.2240    0.6265   -0.0891    0.6654     70.32


            PHOSPHATE   P        0.5318    0.7142   -0.5303    0.8904     53.33
                        O1       0.5843    0.7960   -0.6418    0.9875     53.72
                        O2       0.3924    0.6666   -0.5446    0.7735     59.52
                        O3       0.5472    0.7946   -0.3928    0.9648     55.44
                        O5       0.6287    0.5894   -0.5049    0.8618     43.15


            SUGAR       C1       0.7866    0.2943   -0.3084    0.8398     20.51
                        C2       0.8505    0.2507   -0.4398    0.8867     16.42
                        C3       0.8106    0.3657   -0.5321    0.8893     24.28
                        C4       0.8361    0.4837   -0.4383    0.9660     30.05
                        C5       0.7675    0.6137   -0.4755    0.9827     38.64
                        O4       0.7859    0.4362   -0.3101    0.8988     29.03
                        H1       0.8477    0.2599   -0.2250    0.8867     17.04
                        H12      0.8039    0.1585   -0.4744    0.8194     11.15
                        H22      0.9590    0.2487   -0.4292    0.9907     14.54
                        H3       0.7046    0.3616   -0.5573    0.7920     27.16
                        H4       0.9435    0.5005   -0.4295    1.0680     27.95
                        H15      0.8162    0.6568   -0.5629    1.0477     38.82
                        H25      0.7753    0.6839   -0.3925    1.0338     41.41


            URACIL      N1       0.6491    0.2466   -0.2912    0.6944     20.80
                        C2       0.6328    0.1211   -0.2378    0.6442     10.83
                        O2       0.7264    0.0502   -0.2052    0.7282      3.95
                        N3       0.5019    0.0795   -0.2231    0.5082      9.00
                        C4       0.3889    0.1514   -0.2565    0.4173     21.27
                        O4       0.2767    0.1035   -0.2387    0.2954     20.52
                        C5       0.4163    0.2819   -0.3118    0.5027     34.11
                        BR       0.2715    0.3865   -0.3601    0.4723     54.92
                        C6       0.5426    0.3248   -0.3272    0.6324     30.91
                        H3       0.4876   -0.0116   -0.1844    0.4877     -1.36
                        H6       0.5592    0.4156   -0.3658    0.6967     36.62


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