spacer
spacer

PDBsum entry 1ph9

Go to PDB code: 
Top Page protein dna_rna metals Protein-protein interface(s) links
DNA binding protein/DNA PDB id
1ph9
Contents
Protein chains
460 a.a. *
216 a.a. *
DNA/RNA
Metals
_NA ×4
_CL
Waters ×503
* Residue conservation analysis
procheck   Generate full PROCHECK analyses

PROCHECK summary for 1ph9

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          555       87.4%*  
Additional allowed regions [a,b,l,p]         75       11.8%          
Generously allowed regions [~a,~b,~l,~p]      3        0.5%          
Disallowed regions         [XX]               2        0.3%*  
                                           ----      ------
Non-glycine and non-proline residues        635      100.0%

End-residues (excl. Gly and Pro)              3

Glycine residues                             23
Proline residues                             15
                                           ----
Total number of residues                    676


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            -0.37      
     Chi1-chi2 distribution           0.04      
     Chi1 only                        0.08      
     Chi3 & chi4                      0.64      
     Omega                            0.58      
                                                   0.15      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.61      
     Main-chain bond angles           0.53      
                                                   0.56      
                                                  =====

     OVERALL AVERAGE                               0.31      
                                                  =====

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