DNA Topoisomerase 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
 ARG-271   GLU-272  8.4 8.9 -12.6 24.8 131.8 137.7 10.8
 GLU-272   ASP-273  5.1 6.0 -14.0 13.2 73.4 85.9 7.4
 ASP-273   LYS-274  2.0 3.4 25.8 17.7 55.0 55.4 54.5
 LYS-274   PRO-275  1.6 1.0 -38.9 9.7 63.8 81.9 21.1
 PRO-275   THR-276  5.3 4.8 -0.7 -8.1 69.8 72.2 6.2

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


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-409   SER-410  5.1 5.3 -2.9 25.0 130.0 134.4 29.0
 SER-410   THR-411  1.9 2.3 -37.9 7.6 72.4 84.2 31.5
 THR-411   THR-412  1.9 2.6 32.9 -12.2 59.5 48.9 38.2

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


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
 ALA-424   ARG-425  6.4 5.9 1.9 -2.6 52.3 40.6 -0.7
 ARG-425   GLY-426  3.3 2.8 6.4 -51.6 108.0 103.5 21.1
 GLY-426   ARG-427  0.9 1.5 62.7 10.4 48.3 34.8 80.7
 ARG-427   ILE-428  3.5 4.5 1.0 4.1 102.5 96.0 -3.9

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-447   ARG-448  3.5 4.7 -109.0 64.7 103.5 111.5 -8.3
 ARG-448   ILE-449  4.6 4.5 -28.3 15.0 30.8 49.3 15.3
 ILE-449   LEU-450  6.4 7.0 5.6 -28.8 88.1 78.0 2.5

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