Sdai Restriction Endonuclease

(All numbering and residues are taken from first PDB file)

Bending Residue Dihedral Analysis

Residue
i
Residue
i+1
Distance of hinge axis to residue i in conformer 1
(A)
Distance of hinge axis to residue i in conformer 2
(A)
Change in psi (i)
(deg)
Change in phi (i+1)
(deg)
Angle of psi(i) axis to hinge axis conformer 1
(deg)
Angle of psi(i) axis to hinge axis conformer 2
(deg)
Percentage Progress
 ALA-137   LEU-138  9.9 9.4 -0.3 1.4 72.8 74.0 15.8
 LEU-138   VAL-139  7.9 7.4 -10.8 3.3 14.8 11.0 45.8
 VAL-139   ASP-140  8.0 7.4 1.1 -2.4 100.3 100.9 -4.0

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Graph shows rotational transition at bending residues and can be used to identify hinge bending residues.
Probably only informative for interdomain rotations greater than 20 degrees