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Title | THE COMPLEX BETWEEN PHAGE 434 REPRESSION DNA-BINDING DOMAIN AND OPERATOR SITE OR3: STRUCTURAL DIFFERENCES BETWEEN CONSENSUS AND NON-CONSENSUS HALF-SITES | |
PDB code | 1PER (PDB summary) | |
NDB code | PDR015 (NDB atlas) | |
Duplex length | 19 base pairs | |
Protein | Phage 434 repressor, Transcription factor, DNA binding domain: Prokaryotic helix-turn-helix |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.401 | |
Straight line (x-axis) | 5.050 | |
Arc | 0.612 | Radius of curvature: r = 77 Å |
Kinked line | 0.981 | Kink angle: alpha = 24° Lengths of straight segments: l1 = 8 bp, l2 = 11 bp |
Double kinked line | 0.188 | Kink angles: alpha1 = 22°, alpha2 = 19° Twist angle: omega = -58° Lengths of straight segments: l1 = 6 bp, l2 = 8 bp, l3 = 5 bp |