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PDBsum entry 2e2h
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Top Page protein dna_rna ligands metals Protein-protein interface(s) links
Transcription,transferase/DNA-RNA hybrid PDB id
2e2h
Contents
Protein chains
1398 a.a.
1096 a.a.
266 a.a.
193 a.a.
83 a.a.
133 a.a.
119 a.a.
65 a.a.
114 a.a.
46 a.a.
DNA/RNA
Ligands
GTP
Metals
_MG ×2
_ZN ×8
procheck   Generate full PROCHECK analyses

PROCHECK summary for 2e2h

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         2243       72.7%** 
Additional allowed regions [a,b,l,p]        674       21.8%          
Generously allowed regions [~a,~b,~l,~p]     99        3.2%          
Disallowed regions         [XX]              71        2.3%*  
                                           ----      ------
Non-glycine and non-proline residues       3087      100.0%

End-residues (excl. Gly and Pro)             57

Glycine residues                            212
Proline residues                            157
                                           ----
Total number of residues                   3513

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            -0.98*     
     Chi1-chi2 distribution          -0.86*     
     Chi1 only                       -0.33      
     Chi3 & chi4                      0.37      
     Omega                           -0.75*     
                                                  -0.68*     
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.59      
     Main-chain bond angles           0.47      
                                                   0.52      
                                                  =====

     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.

 

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