# OC Root 2nd 3rd 4th PC Gene/Definition OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.1354 age:AA314_01160 Formate hydrogenlyase transcriptional activator OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.2881 age:AA314_02808 Response regulator of zinc sigma-54-dependent two-component system OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.2913 age:AA314_02846 response regulator HsfA OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.3942 age:AA314_03945 Response regulator of zinc sigma-54-dependent two-component system OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.5020 age:AA314_05081 Response regulator of zinc sigma-54-dependent two-component system OC.24833 Bacteria.17987 Proteobacteria.264198 Deltaproteobacteria.1841 age.9681 age:AA314_10062 Sigma-54 dependent transcriptional regulator, Fis family