A Standard Reference Frame for the Description
of Nucleic Acid Base-pair Geometry

Guanine

ATOM      1  C1'   G A   1      -2.477   5.399   0.000

ATOM      2  N9    G A   1      -1.289   4.551   0.000

ATOM      3  C8    G A   1       0.023   4.962   0.000

ATOM      4  N7    G A   1       0.870   3.969   0.000

ATOM      5  C5    G A   1       0.071   2.833   0.000

ATOM      6  C6    G A   1       0.424   1.460   0.000

ATOM      7  O6    G A   1       1.554   0.955   0.000

ATOM      8  N1    G A   1      -0.700   0.641   0.000

ATOM      9  C2    G A   1      -1.999   1.087   0.000

ATOM     10  N2    G A   1      -2.949   0.139  -0.001

ATOM     11  N3    G A   1      -2.342   2.364   0.001

ATOM     12  C4    G A   1      -1.265   3.177   0.000

END

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