2-Isopropylmalate Synthase

(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-424   VAL-425  16.3 16.9 -7.6 -4.9 102.8 105.0 -6.5
 VAL-425   ILE-426  13.1 13.8 5.9 8.5 14.4 19.0 11.8
 LYS-434   GLY-435  9.0 9.3 -29.8 56.1 107.4 125.4 17.5
 GLY-435   GLY-436  9.2 11.1 133.9 -19.1 134.7 109.2 173.5
 GLY-436   VAL-437  10.4 10.9 -98.5 -8.4 86.9 83.1 45.9
 VAL-437   ALA-438  14.2 14.6 4.4 -9.4 134.7 132.3 2.6
 ALA-438   TYR-439  15.0 15.0 7.7 -4.7 80.2 74.6 -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