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Title | CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES | |
PDB code | 2PUC (PDB summary) | |
NDB code | PDR042 (NDB atlas) | |
Duplex length | 16 base pairs | |
Protein | Purine repressor, Transcription factor, DNA binding domain: Lac I family |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.290 | |
Straight line (x-axis) | 12.969 | |
Arc | 1.412 | Radius of curvature: r = 37 Å |
Kinked line | 0.442 | Kink angle: alpha = 46° Lengths of straight segments: l1 = 8 bp, l2 = 8 bp |
Double kinked line | 0.510 | Kink angles: alpha1 = ill defined, alpha2 = ill defined Twist angle: omega = -116° Lengths of straight segments: l1 = 8 bp, l2 = 0 bp, l3 = 8 bp |