Dna-Directed RNA Polymerase Alpha Chain

(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-46   SER-47  5.8 5.5 -2.5 0.9 112.3 116.7 13.2
 SER-47   ILE-48  3.1 3.1 9.7 3.3 113.9 111.8 0.2
 ILE-48   PRO-49  0.7 0.7 -38.6 41.2 46.8 52.9 45.6
 PRO-49   GLY-50  4.3 4.4 12.9 -9.3 143.5 159.1 -11.8
 GLY-50   THR-51  5.4 5.2 -23.1 -4.8 53.6 57.1 84.7

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


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
 ASP-168   ALA-169  11.1 11.1 -9.3 0.6 60.8 61.3 17.6
 ALA-169   VAL-170  9.1 9.3 -4.5 -2.2 76.9 68.4 5.2
 VAL-170   PHE-171  5.4 5.6 7.8 -5.1 128.1 119.2 16.1
 PHE-171   SER-172  4.5 4.4 6.9 -3.6 117.9 112.4 57.0
 SER-172   PRO-173  1.4 1.4 -3.5 9.9 120.0 120.9 9.2
 PRO-173   VAL-174  2.3 2.3 -1.5 2.9 95.9 97.5 8.2

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