# OC Root 2nd 3rd 4th PC Gene/Definition OC.58077 Bacteria.752322 Chloroflexi.8305 - atm.2144 atm:ANT_22070 putative NADH dehydrogenase; K05568 multicomponent Na+:H+ antiporter subunit D OC.58077 Bacteria.752322 Chloroflexi.8305 - pbf.424 pbf:CFX0092_A0263 putative hydrogenase membrane sub-unit; K05568 multicomponent Na+:H+ antiporter subunit D OC.58078 Bacteria.697270 Bacteroidetes.13915 Alistipes.1673 afd.405 afd:Alfi_0339 formate hydrogenlyase subunit 3/multisubunit Na+/H+ antiporter, MnhD subunit; K12137 hydrogenase-4 component B [EC:1.-.-.-] OC.58078 Bacteria.697270 Bacteroidetes.13915 - rbc.1337 rbc:BN938_1559 Hydrogenase-4 component B / Formate hydrogenlyase subunit 3; K12137 hydrogenase-4 component B [EC:1.-.-.-]