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Title | CRYSTAL STRUCTURE OF THE INTEIN HOMING ENDONUCLEASE PI-SCEI BOUND TO ITS SUBSTRATE DNA (CA2+ FREE) | |
PDB code | 1LWT (PDB summary) | |
NDB code | PD0320 (NDB atlas) | |
Duplex length | 36 base pairs | |
Protein | Endonuclease PI-SceI, Nuclease, DNA binding domain: Alpha-helix|beta-barrel, DNA binding domain: Basic helix-loop-helix leucine zipper|helix-turn-helix, POU domain|high mobility group|zinc finger |
Model | sigma2 / Å2 | Geometrical parameters |
Plane | 1.872 | |
Straight line (x-axis) | 61.872 | |
Arc | 7.163 | Radius of curvature: r = 71 Å |
Kinked line | 4.102 | Kink angle: alpha = 58° Lengths of straight segments: l1 = 13 bp, l2 = 23 bp |
Double kinked line | 1.483 | Kink angles: alpha1 = 52°, alpha2 = 19° Twist angle: omega = -49° Lengths of straight segments: l1 = 11 bp, l2 = 10 bp, l3 = 15 bp |