[FeFe]-hydrogenase operon-like gene cluster in <i>V</i>. <i>carteri</i>.

<p>Four genes with sequence similarity to <i>HYDA1</i>, <i>HYDA2</i>, <i>HYDEF</i>, and <i>HYDG</i> are arranged within 60 kb of one another. The gene orientation corresponds to the orientation of each shape. Three additional putative genes are within this region: <i>ACKA</i> (XP_002948613), a phosphate acetyltransferase (XP_002948484), and a predicted gene, Q85 (XP_002948486). These three predicted gene products are not hypothesized to catalyze H_<b>2</b> production or assist in the assembly of the [FeFe]-hydrogenase active site, and these genes are not found within investigated bacterial [FeFe]-hydrogenase gene clusters.