# OC Root 2nd 3rd 4th PC Gene/Definition OC.576725 Bacteria.291230 Firmicutes.10601 Firmicutes___Clostridia.177129 pbq.1207 pbq:C3V37_06555 ispE; 4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol kinase; K00919 4-diphosphocytidyl-2-C-methyl-D-erythritol kinase [EC:2.7.1.148]