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Title | CRYSTAL STRUCTURE OF AN ENGRAILED HOMEODOMAIN-DNA COMPLEX AT ANGSTROMS RESOLUTION: A FRAMEWORK FOR UNDERSTANDING HOMEODO INTERACTIONS | |
PDB code | 1HDD (PDB summary) | |
NDB code | PDT004 (NDB atlas) | |
Duplex length | 20 base pairs | |
Protein | Engrailed, Transcription factor, DNA binding domain: Helix-turn-helix, homeodomain |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 0.140 | |
Straight line (x-axis) | 0.804 | |
Arc | 0.919 | Radius of curvature: r = 745000000 Å |
Kinked line | 0.873 | Kink angle: alpha = 7° Lengths of straight segments: l1 = 4 bp, l2 = 16 bp |
Double kinked line | 0.247 | Kink angles: alpha1 = 10°, alpha2 = 16° Twist angle: omega = 168° Lengths of straight segments: l1 = 8 bp, l2 = 7 bp, l3 = 5 bp |