HEADSC 1zex
SEQCRD    A C DC  C       1      1 C C 0
SEQCRD    A C DC  C       2      2 C C 0
SEQCRD    A C DC  C       3      3 C C 0
SEQCRD    A G DG  G       4      4 C C 0
SEQCRD    A G DG  G       5      5 C C 0
SEQCRD    A C DC  C       6      6 C C 0
SEQCRD    A C DC  C       7      7 C C 0
SEQCRD    A G DG  G       8      8 C C 0
SEQCRD    A G DG  G       9      9 C C 0
SEQCRD    A G DG  G      10     10 C C 0
SEQCRD    B C DC  C       1     11 C C 0
SEQCRD    B C DC  C       2     12 C C 0
SEQCRD    B C DC  C       3     13 C C 0
SEQCRD    B G DG  G       4     14 C C 0
SEQCRD    B G DG  G       5     15 C C 0
SEQCRD    B C DC  C       6     16 C C 0
SEQCRD    B C DC  C       7     17 C C 0
SEQCRD    B G DG  G       8     18 C C 0
SEQCRD    B G DG  G       9     19 C C 0
SEQCRD    B G DG  G      10     20 C C 0
PARAME method XRAY
PARAME resolution 1.65
PARAME R-factor 0.248
PARAME FreeR-factor 0.25