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Title | STRUCTURE OF THE HOMEOTIC UBX/EXD/DNA TERNARY COMPLEX | |
PDB code | 1B8I (PDB summary) | |
NDB code | PD0042 (NDB atlas) | |
Duplex length | 13 base pairs | |
Protein | Ultrabithorax-extradenticle heterodimer, Transcription factor, DNA binding domain: Helix-turn-helix, homeodomain |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.057 | |
Straight line (x-axis) | 1.425 | |
Arc | 0.205 | Radius of curvature: r = 74 Å |
Kinked line | 0.173 | Kink angle: alpha = 18° Lengths of straight segments: l1 = 7 bp, l2 = 6 bp |
Double kinked line | 0.299 | Kink angles: alpha1 = 5°, alpha2 = 16° Twist angle: omega = 34° Lengths of straight segments: l1 = 3 bp, l2 = 5 bp, l3 = 5 bp |