Atp-Dependent RNA Helicase Eif4a

(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
 LEU-223   VAL-224  3.9 4.6 37.9 36.6 86.3 66.4 11.3
 VAL-224   LYS-225  0.4 2.1 -166.7 7.2 125.5 166.8 -84.2
 LYS-225   LYS-226  2.6 3.0 9.3 -12.9 96.0 78.9 3.6
 LYS-226   ASP-227  6.1 3.8 21.6 -67.3 42.7 71.9 -14.8
 ASP-227   GLU-228  7.7 7.4 -6.0 -11.1 126.5 118.0 -6.5

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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