| Phylum | Gammaproteobacteria |
| Order | Enterobacteriales |
| Organism | Escherichia coli |
| Hydrogenase | [NiFe] Group 4a |
| Activity (Predicted) | Evolving |
| Oxygen Tolerance (Predicted) | Sensitive |
| Subunits (Predicted) | 6 or 9 |
| Metal Centres (Predicted) | [NiFe]-centre, 1 x [4Fe4S] clusters |
| Accessory Subunits (Predicted) | NuoL, NuoH, two [FeS] proteins, (three antiporter subunits) |
MEGAEKCWIVVKALVDADSREFPSVTPRVPAAVWGEREIRDMYGLIPVGLPDQRRLVLPDDWPEDMHPLRKDAMDYRLRPEPTTDSETYPFINEGNSDARVIPVGPLHITSDEPGHFRLFVDGEQIVDADYRLFYVHRGMEKLAETRMGYNEVTFLSDRVCGICGFAHSVAYTNSVENALGIEVPQRAHTIRSILLEVERLHSHLLNLGLSCHFVGFDTGFMQFFRVREKSMTMAELLIGSRKTYGLNLIGGVRRDILKEQRLQTLKLVREMRADVSELVEMLLATPNMEQRTQGIGILDRQIARDLRFDHPYADYGNIPKTLFTFTGGDVFSRVMVRVKETFDSLAMLEFALDNMPDTPLLTEGFSYKPHAFALGFVEAPRGEDVHWSMLGDNQKLFRWRCRAATYANWPVLRYMLRGNTVSDAPLIIGSLDPCYSCTDRVTLVDVRKRQSKTVPYKEIERYGIDRNRSPLK