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
 MET-71   MET-72  11.1 11.3 -17.4 -28.4 47.3 59.6 22.1
 MET-72   ALA-73  10.8 9.7 49.2 -17.7 79.3 54.3 -11.5
 ALA-73   ARG-74  8.2 7.9 66.9 -20.9 104.2 95.6 8.7
 ARG-74   LYS-75  5.9 5.7 148.9 -13.7 168.4 122.8 122.0
 LYS-75   MET-76  6.5 2.3 119.4 -17.8 110.4 120.8 -59.9
 MET-76   LYS-77  5.8 2.7 -118.0 -18.0 96.8 60.1 -34.7
 LYS-77   ASP-78  2.7 2.5 -159.9 -4.1 49.2 54.6 64.2
 ASP-78   THR-79  1.7 2.2 6.1 -1.0 160.2 161.2 0.0

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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