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Title | CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO GROOVE BINDING BY ALPHA HELICES | |
PDB code | 2PUA (PDB summary) | |
NDB code | PDR040 (NDB atlas) | |
Duplex length | 16 base pairs | |
Protein | Purine repressor, Transcription factor, DNA binding domain: Lac I family |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.350 | |
Straight line (x-axis) | 10.679 | |
Arc | 1.425 | Radius of curvature: r = 41 Å |
Kinked line | 0.561 | Kink angle: alpha = 42° Lengths of straight segments: l1 = 8 bp, l2 = 8 bp |
Double kinked line | 0.586 | Kink angles: alpha1 = 109°, alpha2 = 73° Twist angle: omega = -159° Lengths of straight segments: l1 = 8 bp, l2 = 1 bp, l3 = 7 bp |