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PDBsum entry 3iyd

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Transcription/DNA PDB id
3iyd
Jmol
Contents
Protein chains
322 a.a.
235 a.a.
1089 a.a.
1368 a.a.
90 a.a.
479 a.a.
201 a.a.
DNA/RNA
Ligands
CMP ×2
procheck   Generate full PROCHECK analyses

PROCHECK summary for 3iyd

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         2535       72.2%** 
Additional allowed regions [a,b,l,p]        867       24.7%          
Generously allowed regions [~a,~b,~l,~p]     81        2.3%          
Disallowed regions         [XX]              27        0.8%*  
                                           ----      ------
Non-glycine and non-proline residues       3510      100.0%

End-residues (excl. Gly and Pro)            214

Glycine residues                            295
Proline residues                            162
                                           ----
Total number of residues                   4181


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            -1.02**
     Chi1-chi2 distribution          -0.17      
     Chi1 only                        0.07      
     Chi3 & chi4                      0.53      
     Omega                            0.58      
                                                  -0.09      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.71      
     Main-chain bond angles           0.69      
                                                   0.70      
                                                  =====

     OVERALL AVERAGE                               0.21      
                                                  =====

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.