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PDBsum entry 3x1u
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Structural protein/DNA
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PDB id
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3x1u
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Contents |
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98 a.a.
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83 a.a.
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105 a.a.
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94 a.a.
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87 a.a.
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Generate full PROCHECK analyses
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PROCHECK summary for 3x1u
Ramachandran plot
PROCHECK statistics
1. Ramachandran Plot statistics
No. of
residues %-tage
------ ------
Most favoured regions [A,B,L] 621 91.3%
Additional allowed regions [a,b,l,p] 58 8.5%
Generously allowed regions [~a,~b,~l,~p] 1 0.1%
Disallowed regions [XX] 0 0.0%
---- ------
Non-glycine and non-proline residues 680 100.0%
End-residues (excl. Gly and Pro) 13
Glycine residues 52
Proline residues 24
----
Total number of residues 769
Based on an analysis of 118 structures of resolution of at least 2.0 Angstroms and R-factor no greater than 20.0 a good
quality model would be expected to have over 90% in the most favoured regions [A,B,L].
2. G-Factors
Average
Parameter Score Score
--------- ----- -----
Dihedral angles:-
Phi-psi distribution -0.05
Chi1-chi2 distribution -0.45
Chi1 only -0.20
Chi3 & chi4 0.36
Omega -0.54*
-0.22
=====
Main-chain covalent forces:-
Main-chain bond lengths 0.47
Main-chain bond angles 0.13
0.27
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OVERALL AVERAGE -0.02
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G-factors provide a measure of how unusual, or out-of-the-ordinary, a property is.
Values below -0.5* - unusual
Values below -1.0** - highly unusual
Important note: The main-chain
bond-lengths and bond angles are compared with
the Engh & Huber (1991) ideal values derived
from small-molecule data. Therefore, structures
refined using different restraints may show
apparently large deviations from normality.
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