Main chain and chi torsion angles: Note: alpha: O3'(i-1)-P-O5'-C5' beta: P-O5'-C5'-C4' gamma: O5'-C5'-C4'-C3' delta: C5'-C4'-C3'-O3' epsilon: C4'-C3'-O3'-P(i+1) zeta: C3'-O3'-P(i+1)-O5'(i+1) chi for pyrimidines(Y): O4'-C1'-N1-C2 chi for purines(R): O4'-C1'-N9-C4 Strand I base alpha beta gamma delta epsilon zeta chi 1 G --- 136.4 31.1 143.4 -140.8 -160.5 -98.0 2 A -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 3 T -29.9 136.3 31.1 143.3 -140.8 -160.5 -97.9 4 C -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 5 G -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 6 A -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 7 T -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 8 C -29.9 136.3 31.1 143.3 -140.8 -160.5 -97.9 9 G -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 10 A -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 11 T -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 12 C -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 13 G -29.9 136.3 31.1 143.3 -140.8 -160.5 -98.0 14 A -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 15 T -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 16 C -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 17 G -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 18 A -29.9 136.3 31.1 143.3 -140.8 -160.5 -98.0 19 T -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 20 C -29.9 136.3 31.2 143.3 --- --- -98.0 Strand II base alpha beta gamma delta epsilon zeta chi 1 C -29.9 136.4 31.1 143.4 --- --- -98.0 2 T -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 3 A -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 4 G -29.9 136.3 31.1 143.3 -140.8 -160.5 -98.0 5 C -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 6 T -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 7 A -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 8 G -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 9 C -29.9 136.3 31.1 143.3 -140.8 -160.5 -97.9 10 T -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 11 A -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 12 G -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 13 C -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 14 T -29.9 136.3 31.1 143.3 -140.8 -160.5 -97.9 15 A -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 16 G -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 17 C -29.9 136.3 31.2 143.3 -140.8 -160.5 -98.0 18 T -29.9 136.4 31.1 143.4 -140.8 -160.5 -98.0 19 A -29.9 136.3 31.1 143.3 -140.8 -160.5 -98.0 20 G --- 136.3 31.2 143.3 -140.8 -160.5 -98.0