MSAPHTSSPRTAALIPAAGSGTRLGLGPKAFVEVAGRSLLARSVAALAPFVDEVVVALPAGMDLPAGVPARAIVGGETRQGSVRRLLEATEAGTVLIHDAARPFVPPPVILALLDAIAATGAATVALPVADTLVRAEGQSWGQLVPREGLWAVQTPQGFRRELLLQAHARAEAEQYAATDDAGLLARLGVQVRLVPGDARLFKVTTPGDLALAEALTGHVDGGWLTVEGEKR DR_2604 ISPD_DEIRA 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase ispD MEP cytidylyltransferase 232 Catalyzes the formation of 4-diphosphocytidyl-2-C- methyl-D-erythritol from CTP and 2-C-methyl-D-erythritol 4- phosphate (MEP) (By similarity). 4-diphosphocytidyl-2C-methyl-D-erythritol synthase