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PDBsum entry 1kb9
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Oxidoreductase/electron transport PDB id
1kb9
Contents
Protein chains
431 a.a.
352 a.a.
385 a.a. *
246 a.a. *
185 a.a. *
74 a.a. *
125 a.a. *
93 a.a. *
55 a.a. *
127 a.a. *
107 a.a. *
Ligands
PCF
UMQ
HEM ×3
SMA
UQ6
PIE
PEF ×2
CDL
FES
Waters ×321
* Residue conservation analysis
procheck   Generate full PROCHECK analyses

PROCHECK summary for 1kb9

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         1679       87.4%*  
Additional allowed regions [a,b,l,p]        226       11.8%          
Generously allowed regions [~a,~b,~l,~p]     11        0.6%          
Disallowed regions         [XX]               4        0.2%*  
                                           ----      ------
Non-glycine and non-proline residues       1920      100.0%

End-residues (excl. Gly and Pro)             18

Glycine residues                            142
Proline residues                            100
                                           ----
Total number of residues                   2180

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            -0.22      
     Chi1-chi2 distribution          -0.21      
     Chi1 only                        0.11      
     Chi3 & chi4                      0.41      
     Omega                            0.59      
                                                   0.12      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.66      
     Main-chain bond angles           0.47      
                                                   0.55      
                                                  =====

     OVERALL AVERAGE                               0.30      
                                                  =====

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.

 

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