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PDBsum entry 4xwk
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Hydrolase PDB id
4xwk
Contents
Protein chain
1182 a.a.
Ligands
4C8
procheck   Generate full PROCHECK analyses

PROCHECK summary for 4xwk

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          993       94.3%          
Additional allowed regions [a,b,l,p]         46        4.4%          
Generously allowed regions [~a,~b,~l,~p]     11        1.0%          
Disallowed regions         [XX]               3        0.3%*  
                                           ----      ------
Non-glycine and non-proline residues       1053      100.0%

End-residues (excl. Gly and Pro)              3

Glycine residues                             96
Proline residues                             30
                                           ----
Total number of residues                   1182

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             0.02      
     Chi1-chi2 distribution          -0.38      
     Chi1 only                       -0.09      
     Chi3 & chi4                      0.59      
     Omega                           -0.46      
                                                  -0.15      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.66      
     Main-chain bond angles           0.55      
                                                   0.60      
                                                  =====

     OVERALL AVERAGE                               0.14      
                                                  =====

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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