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Title | HUMAN RECONSTITUTED DNA TOPOISOMERASE I IN COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX | |
PDB code | 1A31 (PDB summary) | |
NDB code | PDE0142 (NDB atlas) | |
Duplex length | 22 base pairs | |
Protein | Topoisomerase I, Isomerase |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.032 | |
Straight line (x-axis) | 0.371 | |
Arc | 0.383 | Radius of curvature: r = 1230 Å |
Kinked line | 0.301 | Kink angle: alpha = 5° Lengths of straight segments: l1 = 15 bp, l2 = 7 bp |
Double kinked line | 0.096 | Kink angles: alpha1 = 9°, alpha2 = 8° Twist angle: omega = 172° Lengths of straight segments: l1 = 6 bp, l2 = 7 bp, l3 = 9 bp |