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PDBsum entry 1cvd

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Lyase(oxo-acid) PDB id
1cvd
Jmol
Contents
Protein chain
255 a.a.
Metals
_ZN
Waters ×113
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PROCHECK summary for 1cvd

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          186       86.9%*  
Additional allowed regions [a,b,l,p]         26       12.1%          
Generously allowed regions [~a,~b,~l,~p]      1        0.5%          
Disallowed regions         [XX]               1        0.5%*  
                                           ----      ------
Non-glycine and non-proline residues        214      100.0%

End-residues (excl. Gly and Pro)              2

Glycine residues                             22
Proline residues                             17
                                           ----
Total number of residues                    255


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            -0.47      
     Chi1-chi2 distribution          -0.13      
     Chi1 only                        0.15      
     Chi3 & chi4                      0.35      
     Omega                            0.40      
                                                   0.00      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths         -0.90*     
     Main-chain bond angles          -1.39**
                                                  -1.19**
                                                  =====

     OVERALL AVERAGE                              -0.45      
                                                  =====

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.