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Title | NMR STUDY OF TRP REPRESSOR-OPERATOR DNA COMPLEX | |
PDB code | 1RCS (PDB summary) | |
NDB code | 1RCS (NDB atlas) | |
Duplex length | 20 base pairs | |
Protein | Tryptophan repressor, Transcription factor, DNA binding domain: Prokaryotic helix-turn-helix |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.280 | |
Straight line (x-axis) | 10.632 | |
Arc | 0.738 | Radius of curvature: r = 70 Å |
Kinked line | 1.576 | Kink angle: alpha = 33° Lengths of straight segments: l1 = 12 bp, l2 = 8 bp |
Double kinked line | 0.148 | Kink angles: alpha1 = 20°, alpha2 = 29° Twist angle: omega = -32° Lengths of straight segments: l1 = 6 bp, l2 = 8 bp, l3 = 6 bp |