| CDS description | CDS accession | Island | Host Description |
|---|
| nickel-iron hydrogenase, b-type cytochrome subunit | NC_012483:3529895:3536550 | NC_012483:3529895 | Acidobacterium capsulatum ATCC 51196, complete genome |
| iron hydrogenase | NC_016012:879972:882165 | NC_016012:879972 | Candidatus Arthromitus sp. SFB-rat-Yit, complete genome |
| iron hydrogenase HydA | NC_018664:3073022:3082240 | NC_018664:3073022 | Clostridium acidurici 9a chromosome, complete genome |
| iron hydrogenase HydB | NC_018664:3073022:3083344 | NC_018664:3073022 | Clostridium acidurici 9a chromosome, complete genome |
| iron hydrogenase HydC | NC_018664:3073022:3085257 | NC_018664:3073022 | Clostridium acidurici 9a chromosome, complete genome |
| iron hydrogenase | NC_008261:2920999:2926027 | NC_008261:2920999 | Clostridium perfringens ATCC 13124, complete genome |
| iron hydrogenase small subunit | NC_010334:1701957:1703204 | NC_010334:1701957 | Shewanella halifaxensis HAW-EB4, complete genome |