Troponin I

(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
 GLY-73   ARG-74  12.9 12.4 20.2 -3.1 148.4 159.2 -92.4
 ARG-74   ALA-75  13.1 13.0 -27.4 24.2 86.6 73.5 8.3
 ALA-75   LEU-76  10.0 9.9 -0.6 -16.7 84.8 83.0 28.5
 LEU-76   SER-77  8.1 8.2 12.4 19.4 160.0 130.9 -129.8
 SER-77   THR-78  9.6 10.7 -37.3 45.1 52.1 36.1 -36.9
 THR-78   ARG-79  7.6 8.5 -3.4 20.0 94.6 98.9 37.7
 ARG-79   ALA-80  4.1 6.3 11.2 28.7 97.7 78.3 85.1
 ALA-80   GLN-81  5.3 9.6 -68.1 -20.9 42.8 37.4 412.5

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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