Calcium-Gated Potassium Channel Mthk

(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-239   SER-240  7.6 7.4 2.4 0.4 48.2 48.8 4.3
 SER-240   ARG-241  5.8 5.5 3.6 -2.3 89.3 87.8 2.2
 ARG-241   SER-242  2.3 2.1 -3.4 3.3 107.2 108.0 33.5

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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