---
title: Abi2
tableColumns:
    doi: 10.1016/j.mib.2005.06.006
---

The Abi2 system is composed of one protein: Abi_2.

Here is an example found in the RefSeq database: 

![abi2](/abi2/Abi2.svg){max-width=750px}

Abi2 system in the genome of *Clostridium butyricum* (GCF_014131795.1) is composed of 1 protein: Abi_2 (WP_035763709.1).

## Distribution of the system among prokaryotes

The Abi2 system is present in a total of 176 different species.

Among the 22k complete genomes of RefSeq, this system is present in 1210 genomes (5.3 %).

![abi2](/abi2/Distribution_Abi2.svg){max-width=750px}

*Proportion of genome encoding the Abi2 system for the 14 phyla with more than 50 genomes in the RefSeq database.* 

## Relevant abstracts