Tropomyosin Alpha Chain, Skeletal Muscle

(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
 LYS-30   ALA-31  4.6 5.1 -19.8 11.3 107.5 97.6 -3.2
 ALA-31   ALA-32  1.3 1.8 -3.8 0.1 43.0 38.3 13.0
 ALA-32   GLU-33  1.2 0.8 -7.7 4.0 48.1 41.4 16.7
 GLU-33   GLU-34  1.9 2.2 -3.2 6.0 106.5 101.2 12.2
 GLU-34   ARG-35  4.4 4.4 1.7 -3.8 94.6 95.2 40.5

Downloading Image

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