spacer
spacer

PDBsum entry 2dhb

Go to PDB code: 
Top Page protein ligands Protein-protein interface(s) links
Oxygen transport PDB id
2dhb
Jmol
Contents
Protein chains
141 a.a. *
146 a.a. *
Ligands
HEM ×2
Waters ×2
* Residue conservation analysis
procheck   Generate full PROCHECK analyses

PROCHECK summary for 2dhb

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]          187       75.4%** 
Additional allowed regions [a,b,l,p]         59       23.8%          
Generously allowed regions [~a,~b,~l,~p]      1        0.4%          
Disallowed regions         [XX]               1        0.4%*  
                                           ----      ------
Non-glycine and non-proline residues        248      100.0%

End-residues (excl. Gly and Pro)              4

Glycine residues                             24
Proline residues                             11
                                           ----
Total number of residues                    287


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            -0.78*     
     Chi1-chi2 distribution          -0.86*     
     Chi1 only                       -0.12      
     Chi3 & chi4                      0.44      
     Omega                           -0.97*     
                                                  -0.70*     
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths         -0.34      
     Main-chain bond angles          -3.17**
                                                  -1.98**
                                                  =====

     OVERALL AVERAGE                              -1.13**
                                                  =====

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.