Endonuclease I

(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
 SER-48   ASN-49  9.0 9.1 -7.7 1.0 56.4 59.4 110.9
 ASN-49   HIS-50  8.6 8.3 -2.1 5.9 47.6 54.0 -86.2
 HIS-50   THR-51  10.4 10.3 0.9 0.0 121.8 117.9 70.8
 THR-51   TYR-52  11.2 11.1 3.8 -6.9 160.4 158.1 19.9
 TYR-52   THR-53  11.1 11.3 -0.7 4.2 66.4 67.4 -68.5

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