Hla Class II Histocompatibility Antigen

(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-90   VAL-91  1.7 1.6 -6.4 7.2 74.0 72.1 -46.0  VAL-91   GLN-92  4.1 3.8 -0.8 -2.1 82.3 84.3 34.5  GLN-92   ARG-93  6.2 6.1 -1.0 8.6 141.2 141.3 79.1 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