AbiU

Contributors: Nathalie Bechon

Description

AbiU is a single-protein abortive infection defense system described in Lactococcus.

Molecular mechanism

The molecular mechanism of AbiU is not well understood. It was shown that cells expressing AbiU showed delayed transcription of phage DNA, although how it is achieved, or how it protects the bacterial culture is not understood. AbiU was shown to be encoded near another gene that seems to be an inhibitor of defense (N/A) .

Example of genomic structure

The AbiU is composed of 1 protein: AbiU.

Here is an example found in the RefSeq database:

abiu

The AbiU system in Bacillus subtilis (GCF_001889385.1, NZ_CP018295) is composed of 1 protein: AbiU (WP_072589761.1)

Distribution of the system among prokaryotes

Structure

Experimental validation