3-Hydroxyisobutyrate Dehydrogenase

(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-160   GLY-161  7.3 7.4 -2.4 2.1 106.5 102.8 2.0
 GLY-161   HIS-162  5.3 5.3 -3.0 2.8 42.1 38.2 6.9
 HIS-162   ALA-163  4.2 4.4 -4.1 2.0 79.7 79.9 1.8
 ALA-163   VAL-164  3.5 3.7 3.9 -2.5 51.7 52.8 11.6
 VAL-164   LYS-165  2.1 2.2 -0.1 2.0 78.7 76.5 -3.8
 LYS-165   ALA-166  1.6 1.5 -1.9 -4.6 40.4 40.6 46.1
 ALA-166   ILE-167  1.8 1.6 0.5 1.2 75.6 77.5 -1.3

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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