Calmodulin Cmd-1

(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
 ARG-74   LYS-75  14.5 16.5 27.5 -95.0 84.3 111.1 20.2
 LYS-75   MET-76  12.0 13.7 90.8 -10.2 149.4 106.0 -97.1
 MET-76   LYS-77  12.5 15.5 -14.1 45.6 52.2 50.7 -32.0
 LYS-77   ASP-78  10.8 12.9 134.8 -62.7 65.7 66.2 50.3
 ASP-78   THR-79  7.9 11.2 21.0 -89.3 130.4 134.0 74.6
 THR-79   ASP-80  4.8 8.4 -172.7 35.6 95.5 96.8 -41.3
 ASP-80   SER-81  3.6 9.1 123.3 -45.0 86.1 52.0 145.4

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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