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PDBsum entry 3idy

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Top Page protein ligands Protein-protein interface(s) links
Immune system PDB id
3idy
Contents
Protein chains
306 a.a.
229 a.a.
214 a.a.
Ligands
NAG ×28
SO4
Waters ×152
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PROCHECK summary for 3idy

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         1013       78.6%** 
Additional allowed regions [a,b,l,p]        255       19.8%          
Generously allowed regions [~a,~b,~l,~p]     11        0.9%          
Disallowed regions         [XX]              10        0.8%*  
                                           ----      ------
Non-glycine and non-proline residues       1289      100.0%

End-residues (excl. Gly and Pro)             20

Glycine residues                            114
Proline residues                             72
                                           ----
Total number of residues                   1495


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            -0.83*     
     Chi1-chi2 distribution          -0.35      
     Chi1 only                       -0.20      
     Chi3 & chi4                      0.44      
     Omega                           -0.17      
                                                  -0.35      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.69      
     Main-chain bond angles           0.61      
                                                   0.64      
                                                  =====

     OVERALL AVERAGE                               0.04      
                                                  =====

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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