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PDBsum entry 3gvk

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Hydrolase PDB id
3gvk
Jmol
Contents
Protein chains
644 a.a.
Ligands
SLB-SIA-SIA ×6
SLB-SIA ×3
Metals
_NA ×3
Waters ×2130
procheck   Generate full PROCHECK analyses

PROCHECK summary for 3gvk

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         1427       85.1%*  
Additional allowed regions [a,b,l,p]        234       14.0%          
Generously allowed regions [~a,~b,~l,~p]     12        0.7%          
Disallowed regions         [XX]               3        0.2%*  
                                           ----      ------
Non-glycine and non-proline residues       1676      100.0%

End-residues (excl. Gly and Pro)              6

Glycine residues                            181
Proline residues                            113
                                           ----
Total number of residues                   1976


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            -0.48      
     Chi1-chi2 distribution           0.07      
     Chi1 only                        0.05      
     Chi3 & chi4                      0.50      
     Omega                           -0.62*     
                                                  -0.30      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.64      
     Main-chain bond angles           0.49      
                                                   0.55      
                                                  =====

     OVERALL AVERAGE                               0.04      
                                                  =====

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.