Trp Operon Repressor

(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-65   MET-66  17.3 17.1 0.4 9.2 157.8 159.0 -100.4
 MET-66   SER-67  17.6 17.3 -2.1 -18.3 64.7 63.4 0.1
 SER-67   GLN-68  18.0 18.7 0.2 22.8 136.3 153.8 -210.2
 GLN-68   ARG-69  15.6 17.7 -27.0 3.5 42.3 52.2 168.9
 ARG-69   GLU-70  18.3 20.0 6.8 1.1 72.5 74.4 10.9
 GLU-70   LEU-71  19.2 19.2 -10.8 8.1 85.6 74.1 -13.7
 LEU-71   LYS-72  15.7 15.5 2.2 -17.6 157.3 164.2 105.8
 LYS-72   ASN-73  15.4 16.0 -5.3 -1.8 76.3 71.4 31.0
 ASN-73   GLU-74  18.8 19.0 6.0 -36.0 63.2 65.0 -84.8
 GLU-74   LEU-75  18.6 18.4 -0.1 -7.4 66.7 85.3 51.2
 LEU-75   GLY-76  15.7 14.8 -2.8 10.0 7.9 28.9 -51.5
 GLY-76   ALA-77  16.4 14.0 7.9 -19.2 113.1 89.4 55.9
 ALA-77   GLY-78  13.1 12.2 -50.8 -18.3 64.9 79.4 156.2
 GLY-78   ILE-79  13.0 13.5 13.5 22.6 47.1 74.5 87.1

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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