# OC Root 2nd 3rd 4th PC Gene/Definition OC.645534 Bacteria.277962 Aquificae.4991 Sulfurihydrogenibium.1187 sul.536 sul:SYO3AOP1_0557 protein of unknown function DUF502 OC.645534 Bacteria.277962 Aquificae.4991 Sulfurihydrogenibium.1187 saf.82 saf:SULAZ_0069 integral membrane protein