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PDBsum entry 1n2c
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Complex of nitrogenase proteins
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PDB id
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1n2c
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Contents |
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478 a.a.
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522 a.a.
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274 a.a.
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* Residue conservation analysis
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Generate full PROCHECK analyses
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PROCHECK summary for 1n2c
Ramachandran plot
PROCHECK statistics
1. Ramachandran Plot statistics
No. of
residues %-tage
------ ------
Most favoured regions [A,B,L] 2338 87.2%*
Additional allowed regions [a,b,l,p] 323 12.0%
Generously allowed regions [~a,~b,~l,~p] 11 0.4%
Disallowed regions [XX] 10 0.4%*
---- ------
Non-glycine and non-proline residues 2682 100.0%
End-residues (excl. Gly and Pro) 16
Glycine residues 274
Proline residues 124
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Total number of residues 3096
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 -0.27
Chi1-chi2 distribution -0.06
Chi1 only 0.01
Chi3 & chi4 0.47
Omega 0.62
0.16
=====
Main-chain covalent forces:-
Main-chain bond lengths 0.68
Main-chain bond angles 0.49
0.57
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OVERALL AVERAGE 0.32
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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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