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
 THR-70   MET-71  12.7 13.0 3.1 10.9 138.6 154.1 -8.8
 MET-71   MET-72  12.4 13.9 -1.2 -9.0 48.9 54.4 1.6
 MET-72   ALA-73  11.9 11.9 -2.7 9.1 104.1 111.7 1.6
 ALA-73   ARG-74  9.4 9.0 24.1 -30.8 100.8 109.3 1.3
 ARG-74   LYS-75  7.2 9.2 8.3 -28.1 164.6 170.0 11.4
 LYS-75   MET-76  7.6 9.5 4.9 -30.2 108.6 113.9 7.1
 MET-76   LYS-77  6.7 7.4 -37.4 92.1 100.7 111.2 23.3
 LYS-77   ASP-78  3.6 4.9 -84.0 -80.3 52.2 24.8 -115.5
 ASP-78   THR-79  2.6 3.4 -88.4 124.5 20.5 78.9 9.5
 THR-79   ASP-80  3.0 1.1 -135.6 112.9 87.1 60.0 1.3
 ASP-80   SER-81  3.2 3.3 132.4 142.3 90.4 158.1 46.1
 SER-81   GLU-82  2.2 3.9 -13.2 102.6 22.7 60.1 -53.9
 GLU-82   GLU-83  2.2 0.8 -111.8 118.1 49.6 7.0 -2.3
 GLU-83   GLU-84  3.2 0.5 62.8 -59.7 76.8 121.7 3.5
 GLU-84   ILE-85  6.2 3.7 80.1 9.8 112.4 81.1 188.1

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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