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PDBsum entry 3i55

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Top Page protein dna_rna ligands metals Protein-protein interface(s) links
Ribosome/antibiotic PDB id
3i55
Jmol
Contents
Protein chains
237 a.a.
337 a.a.
246 a.a.
140 a.a.
172 a.a.
119 a.a.
29 a.a.
160 a.a.
70 a.a.
142 a.a.
132 a.a.
145 a.a.
194 a.a.
186 a.a.
115 a.a.
143 a.a.
95 a.a.
150 a.a.
81 a.a.
119 a.a.
53 a.a.
65 a.a.
154 a.a.
82 a.a.
142 a.a.
73 a.a.
56 a.a.
46 a.a.
92 a.a.
DNA/RNA
Ligands
MYL
Metals
_SR ×108
_NA ×75
_CL ×22
_MG ×93
_CD ×5
__K ×2
Waters ×7823
procheck   Generate full PROCHECK analyses

PROCHECK summary for 3i55

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics


                                         No. of
                                        residues     %-tage
                                         ------      ------
Most favoured regions      [A,B,L]         2534       79.3%** 
Additional allowed regions [a,b,l,p]        625       19.5%          
Generously allowed regions [~a,~b,~l,~p]     30        0.9%          
Disallowed regions         [XX]               8        0.3%*  
                                           ----      ------
Non-glycine and non-proline residues       3197      100.0%

End-residues (excl. Gly and Pro)             56

Glycine residues                            346
Proline residues                            176
                                           ----
Total number of residues                   3775


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          -0.16      
     Chi1 only                       -0.06      
     Chi3 & chi4                      0.44      
     Omega                            0.62      
                                                  -0.02      
                                                  =====
Main-chain covalent forces:-
     Main-chain bond lengths          0.65      
     Main-chain bond angles           0.46      
                                                   0.54      
                                                  =====

     OVERALL AVERAGE                               0.20      
                                                  =====

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.