Potassium Channel

(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  PHE-135   THR-136  4.5 4.1 3.7 -3.9 53.7 54.1 -3.0  THR-136   ARG-137  1.2 0.8 2.3 -0.2 8.5 6.4 36.2  ARG-137   PRO-138  2.6 2.3 -9.0 6.7 100.5 105.9 84.6 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