# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.257213 Bacteria.204603 Proteobacteria.15345 Alphaproteobacteria.198356 Bradyrhizobium.27261 bot.6961 bot:CIT37_38025 LysR family transcriptional regulator OC.257213 Bacteria.204603 Proteobacteria.15345 Alphaproteobacteria.283224 Sphingobium.17174 sch.2975 sch:Sphch_3047 transcriptional regulator, LysR family