| Phylum | Aquificae |
| Order | Desulfurobacteriales |
| Organism | Desulfurobacterium thermolithotrophum |
| Hydrogenase | [FeFe] Group A3 |
| Activity (Predicted) | Bifurcating |
| Oxygen Tolerance (Predicted) | Labile |
| Subunits (Predicted) | 3 |
| Metal Centres (Predicted) | [FeFe]-centre, 2 x [4Fe4S] clusters |
| Accessory Subunits (Predicted) | NADH dehydrogenase, thioredoxin |
MDNKVSRVATFPPPPDARVKGHSPLGTYRPGELKGIVRINQDKCVGCDTCKGHCPADAIKGGLGVAHSVDIMRCINCGQCLVNCPFGAIEQMSFVDEVAKKLSDPEVTVVALIAPAVRVAIAEEFGAPPGTLTVGRLHNALKKLGFKIYETNLAADQTIMEEGFEFIAKVRYWLLGERDEELKEIAHHPLPHFTSCCPGWIRYAEIYYPQLLPHISGAKSPQQMAGASAKTWAALNIWNVDPRKVYTVGIMPCTAKIFEASRPEFKSAWEFLKEKGSIPEDTPPFPDVDAVLTTRDLATLFKMKGINPLELPEKEKEEEPGEIYTGAATIFGNSGGVMEAALRTTYYVLSGKKPPNWNIYGVRGHTTGLKEMEIPIPLKSGETIRIRVAVVNGIKNHLDKIVEDVIKGTSPYHFIEVMNCPGGCINGGGQPINPMGTSWIDPLLPLRLKA