Following evolutionary paths to high affinity and selectivity protein-protein interactions using Colicin7 and Immunity proteinsFollowing evolutionary paths to high affinity and selectivity protein-protein interactions using Colicin7 and Immunity proteins

Structural highlights

3gkl is a 4 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:colE7, cea ("Bacillus coli" Migula 1895), imm, ceiE9 ("Bacillus coli" Migula 1895)
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CEA7_ECOLX] This plasmid-coded bactericidal protein is an endonuclease active on both single- and double-stranded DNA but with undefined specificity. Colicins are polypeptide toxins produced by and active against E.coli and closely related bacteria. [IMM9_ECOLX] This protein is able to protect a cell, which harbors the plasmid ColE9 encoding colicin E9, against colicin E9, it binds specifically to the DNase-type colicin and inhibits its bactericidal activity.

Evolutionary Conservation

 

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

3gkl, resolution 2.20Å

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