Calmodulin

(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
 LEU-69   THR-70  2.0 1.6 -9.0 -6.4 38.3 40.5 9.9
 THR-70   MET-71  3.9 4.0 4.1 9.5 115.3 114.9 -4.4
 MET-71   MET-72  3.4 4.2 -0.7 -6.0 61.3 45.7 2.1
 MET-72   ALA-73  1.5 1.8 -5.4 13.1 30.4 34.5 -4.0
 ALA-73   ARG-74  1.4 1.8 7.3 -2.0 134.2 130.1 -0.3
 ARG-74   LYS-75  2.8 4.4 -28.0 -2.7 76.3 55.8 6.2
 LYS-75   MET-76  3.7 4.6 28.5 78.8 152.9 134.4 -47.8
 MET-76   LYS-77  3.0 1.5 -167.9 -6.4 87.8 35.8 61.8

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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