# OC Root 2nd 3rd 4th PC Gene/Definition OC.226509 Bacteria.344388 Firmicutes.117290 Firmicutes___Clostridia.3797 tpz.1508 tpz:Tph_c15950 hgdC2; activator of (R)-2-hydroxyglutaryl-CoA dehydratase HgdC OC.226509 Bacteria.344388 Firmicutes.117290 Firmicutes___Clostridia.3797 tpz.1769 tpz:Tph_c18780 hgdC3; activator of (R)-2-hydroxyglutaryl-CoA dehydratase HgdC