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PDBsum entry 1cny

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Lyase (oxo-acid) PDB id
1cny
Jmol
Contents
Protein chain
256 a.a.
Ligands
EG3
Metals
_ZN
_HG
Waters ×76
procheck   Generate full PROCHECK analyses

PROCHECK summary for 1cny

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          191       88.8%*  
Additional allowed regions [a,b,l,p]         23       10.7%          
Generously allowed regions [~a,~b,~l,~p]      1        0.5%          
Disallowed regions         [XX]               0        0.0%          
                                           ----      ------
Non-glycine and non-proline residues        215      100.0%

End-residues (excl. Gly and Pro)              2

Glycine residues                             22
Proline residues                             17
                                           ----
Total number of residues                    256


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            -0.43      
     Chi1-chi2 distribution          -0.11      
     Chi1 only                       -0.20      
     Chi3 & chi4                      0.38      
     Omega                            0.26      
                                                  -0.05      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths         -1.04**
     Main-chain bond angles          -1.43**
                                                  -1.27**
                                                  =====

     OVERALL AVERAGE                              -0.51*     
                                                  =====

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.