Taq DNA Polymerase

(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
 HIS-283   GLU-284  17.9 19.4 -85.2 54.1 81.9 112.9 -2.2
 GLU-284   PHE-285  17.2 19.8 -41.4 17.2 150.6 159.4 -15.1
 PHE-285   GLY-286  16.2 22.0 -4.4 1.1 95.1 136.1 3.0
 GLY-286   LEU-287  12.6 19.2 169.4 29.5 101.2 67.7 84.7
 LEU-287   LEU-288  9.6 17.5 -137.7 -3.8 37.1 131.8 7.1
 LEU-288   GLU-289  7.5 19.7 -174.4 43.1 99.4 153.6 -91.8
 GLU-289   SER-290  3.9 18.8 -96.5 74.1 24.9 92.1 2.8
 SER-290   PRO-291  3.4 15.1 8.5 57.0 92.6 31.5 25.6
 PRO-291   LYS-292  4.8 12.8 -46.2 90.2 21.2 86.3 -2.5
 LYS-292   ALA-293  6.6 12.7 115.9 36.9 97.6 124.9 55.5
 ALA-293   LEU-294  7.6 11.8 25.6 36.2 100.0 64.0 5.9
 LEU-294   GLU-295  6.4 9.1 19.3 -0.2 110.3 117.9 -0.1
 GLU-295   GLU-296  9.0 10.5 -37.0 11.7 5.9 20.3 13.6

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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