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Article

Identification of a unique specificity determinant of the colicin E3 immunity protein.

Gene - 30 Oct 1991

Masaki H, Akutsu A, Uozumi T, Ohta T

Abstract excerpt

Plasmid immunity to a nuclease-type colicin is defined by the specific binding of an immunity (or inhibitor) protein, Imm, to the C-terminal nuclease domain, T2A, of the colicin molecule. Whereas most regions of colicin operons exhibit extensive sequence identity, the small plasmid region encoding T2A and Imm is exceptionally varied. Since immunity is essential for the survival of the potentially lethal colicin...

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Identifiers

PMID: 1743512
DOI: 10.1016/0378-1119(91)90306-v

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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Related research

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Research trail→

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Identification of a unique specificity determinant of the colicin E3 immunity protein.PMID 1743512Read ↗

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A dual lethal system to enhance containment of recombinant micro-organisms.Semantic proximity Read ↗

On the interaction of colicin E3 with the ribosome.Semantic proximity Read ↗

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Molecular basis of inhibition of the ribonuclease activity in colicin E5 by its cognate immunity protein.Semantic proximity Read ↗

Following evolutionary paths to protein-protein interactions with high affinity and selectivity.Semantic proximity Read ↗

Immunity protein release from a cell-bound nuclease colicin complex requires global conformational rearrangement.Semantic proximity Read ↗

Identification of residues in the putative TolA box which are essential for the toxicity of the endonuclease toxin colicin E9.Semantic proximity Read ↗

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