Bacterial epsilon antitoxin (IPR015090)

Short name: Epsilon_antitox

Overlapping homologous superfamilies

Family relationships



The epsilon antitoxin, produced by various prokaryotes, forms part of a post-segregational killing system, which is involved in the initiation of programmed cell death of plasmid-free cells. The protein is folded into a three-helix bundle directly interacting with the zeta toxin, inactivating it [PMID: 12571357].

GO terms

Biological Process

GO:0031342 negative regulation of cell killing
GO:0009636 response to toxic substance

Molecular Function

GO:0015643 toxic substance binding

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.