IgA Fab Fragment (J539)

(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
 GLU-104   LEU-105  2.9 3.0 17.0 5.2 18.8 6.3 162.8
 LEU-105   LYS-106  3.2 2.8 -3.2 2.7 117.3 117.8 -36.1
 LYS-106   ARG-107  0.9 1.1 24.1 -22.7 50.4 51.4 -7.4

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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