Flagellar Motor Switch Protein

(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-244   MET-245  4.0 3.6 -9.5 2.8 112.8 117.0 -3.3
 MET-245   PHE-246  0.4 0.3 178.8 -4.3 4.6 6.3 99.1
 PHE-246   THR-247  1.3 1.4 -8.3 4.1 110.8 105.7 -2.4

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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