| CDS description | CDS accession | Island | Host Description |
|---|
| carbon monoxide-induced hydrogenase, CooU subunit | NC_016587:523215:551720 | NC_016587:523215 | Azospirillum lipoferum 4B plasmid AZO_p4, complete sequence |
| carbon monoxide-induced hydrogenase, CooU subunit | NC_012115:961883:974107 | NC_012115:961883 | Nautilia profundicola AmH, complete genome |