Cytochrome Bc1 Complex

(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
 ALA-64   SER-65  19.4 19.5 -86.6 107.7 158.4 100.2 55.9
 SER-65   ALA-66  20.5 20.7 142.5 -142.5 94.8 117.7 4.4
 ALA-66   ASP-67  22.0 21.6 -12.2 52.8 107.0 124.7 19.3
 ASP-67   VAL-68  19.1 19.6 -172.5 82.0 51.9 59.1 141.8
 VAL-68   LEU-69  17.2 16.3 150.6 51.5 93.4 158.6 361.1
 LEU-69   ALA-70  15.7 17.5 159.5 102.8 161.7 106.3 -530.6
 ALA-70   MET-71  14.9 18.8 -90.5 -13.3 92.2 76.0 27.7
 MET-71   SER-72  13.5 15.6 -33.2 -26.1 36.3 38.1 157.0
 SER-72   LYS-73  12.3 14.0 150.4 -174.5 103.9 149.2 47.3
 LYS-73   ILE-74  14.2 13.6 -116.6 16.9 137.0 90.0 -166.0
 ILE-74   GLU-75  13.5 15.2 -30.0 -53.9 65.6 115.3 53.6
 GLU-75   ILE-76  15.9 13.7 4.3 -26.5 67.7 125.7 49.8
 ILE-76   LYS-77  15.4 15.3 20.7 -93.6 108.4 52.2 -51.4
 LYS-77   LEU-78  18.4 16.0 43.4 -117.0 110.8 129.4 134.1

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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