RNA Polymerase Alpha Subunit

(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  4.4 4.4 2.3 0.6 73.4 72.7 5.4
 SER-47   ILE-48  1.5 1.5 -6.3 4.4 57.6 57.4 20.5
 ILE-48   PRO-49  1.5 1.6 -24.9 12.4 50.0 52.6 84.3
 PRO-49   GLY-50  4.3 4.1 0.9 -0.1 165.6 167.7 -7.1

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
 VAL-170   PHE-171  5.9 5.7 -8.0 -0.2 74.5 71.6 26.7
 PHE-171   SER-172  3.7 3.8 -9.8 -1.9 70.5 71.4 81.6
 SER-172   PRO-173  1.1 1.2 6.3 0.0 51.7 51.7 19.6
 PRO-173   VAL-174  2.7 2.6 2.0 -0.7 86.9 86.9 5.2

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