# OC Root 2nd 3rd 4th 5th 6th 7th PC Gene/Definition OC.458011 Bacteria.142189 Proteobacteria.74391 Gammaproteobacteria.152628 Gammaproteobacteria___Enterobacteria.95238 Serratia.17578 Serratia_sp_.12272 sera.2928 sera:Ser39006_015510 class I SAM-dependent methyltransferase