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PDBsum entry 3n4m
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Gene regulation/DNA
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PDB id
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3n4m
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Generate full PROCHECK analyses
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PROCHECK summary for 3n4m
Ramachandran plot
PROCHECK statistics
1. Ramachandran Plot statistics
No. of
residues %-tage
------ ------
Most favoured regions [A,B,L] 278 89.7%*
Additional allowed regions [a,b,l,p] 32 10.3%
Generously allowed regions [~a,~b,~l,~p] 0 0.0%
Disallowed regions [XX] 0 0.0%
---- ------
Non-glycine and non-proline residues 310 100.0%
End-residues (excl. Gly and Pro) 4
Glycine residues 23
Proline residues 13
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Total number of residues 350
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 -0.25
Chi1-chi2 distribution -0.20
Chi1 only 0.07
Chi3 & chi4 0.53
Omega -0.14
-0.09
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Main-chain covalent forces:-
Main-chain bond lengths 0.68
Main-chain bond angles 0.61
0.64
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OVERALL AVERAGE 0.19
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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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