Introduction to RecA

The RecA protein is involved in at least three distinct biological processes in E. coli:

The RecA protein of E. coli has many distinct biochemical activties including:

Homologs of RecA have also been found in other species.

In addition, since there is a crystal structure available of the E. coli RecA protein and since there are 100s of studies of the effects of different mutations on the multiple functions of the protein, I believe RecA can become a model for the studies of protein-structure evolution.