spacer
spacer

PDBsum entry 1ep4
Go to PDB code: 
Top Page protein ligands Protein-protein interface(s) links
Transferase PDB id
1ep4
Contents
Protein chains
523 a.a. *
395 a.a. *
Ligands
S11
Waters ×197
* Residue conservation analysis
procheck   Generate full PROCHECK analyses

PROCHECK summary for 1ep4

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          664       83.9%*  
Additional allowed regions [a,b,l,p]        123       15.5%          
Generously allowed regions [~a,~b,~l,~p]      2        0.3%          
Disallowed regions         [XX]               2        0.3%*  
                                           ----      ------
Non-glycine and non-proline residues        791      100.0%

End-residues (excl. Gly and Pro)             15

Glycine residues                             49
Proline residues                             63
                                           ----
Total number of residues                    918

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            -0.59*     
     Chi1-chi2 distribution          -0.34      
     Chi1 only                       -0.14      
     Chi3 & chi4                      0.46      
     Omega                            0.55      
                                                  -0.02      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.60      
     Main-chain bond angles           0.34      
                                                   0.45      
                                                  =====

     OVERALL AVERAGE                               0.17      
                                                  =====

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.

 

spacer
spacer