# OC Root 2nd 3rd 4th PC Gene/Definition OC.20884 Archaea.1515 Euryarchaeota.41309 Archaeoglobus.4715 ast.1735 ast:Asulf_01816 Heterodisulfide reductase, subunit A-related polyferredoxin; K03388 heterodisulfide reductase subunit A2 [EC:1.8.7.3 1.8.98.4 1.8.98.5 1.8.98.6]