ID   ISPD_CORGB              Reviewed;         256 AA.
AC   A4QH60;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase {ECO:0000255|HAMAP-Rule:MF_00108};
DE            EC=2.7.7.60 {ECO:0000255|HAMAP-Rule:MF_00108};
DE   AltName: Full=4-diphosphocytidyl-2C-methyl-D-erythritol synthase {ECO:0000255|HAMAP-Rule:MF_00108};
DE   AltName: Full=MEP cytidylyltransferase {ECO:0000255|HAMAP-Rule:MF_00108};
DE            Short=MCT {ECO:0000255|HAMAP-Rule:MF_00108};
GN   Name=ispD {ECO:0000255|HAMAP-Rule:MF_00108}; OrderedLocusNames=cgR_2564;
OS   Corynebacterium glutamicum (strain R).
OC   Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC   Corynebacterium.
OX   NCBI_TaxID=340322;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=R;
RX   PubMed=17379713; DOI=10.1099/mic.0.2006/003657-0;
RA   Yukawa H., Omumasaba C.A., Nonaka H., Kos P., Okai N., Suzuki N., Suda M.,
RA   Tsuge Y., Watanabe J., Ikeda Y., Vertes A.A., Inui M.;
RT   "Comparative analysis of the Corynebacterium glutamicum group and complete
RT   genome sequence of strain R.";
RL   Microbiology 153:1042-1058(2007).
CC   -!- FUNCTION: Catalyzes the formation of 4-diphosphocytidyl-2-C-methyl-D-
CC       erythritol from CTP and 2-C-methyl-D-erythritol 4-phosphate (MEP).
CC       {ECO:0000255|HAMAP-Rule:MF_00108}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-C-methyl-D-erythritol 4-phosphate + CTP + H(+) = 4-CDP-2-C-
CC         methyl-D-erythritol + diphosphate; Xref=Rhea:RHEA:13429,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:33019, ChEBI:CHEBI:37563,
CC         ChEBI:CHEBI:57823, ChEBI:CHEBI:58262; EC=2.7.7.60;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00108};
CC   -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC       via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC       phosphate: step 2/6. {ECO:0000255|HAMAP-Rule:MF_00108}.
CC   -!- SIMILARITY: Belongs to the IspD/TarI cytidylyltransferase family. IspD
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00108}.
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DR   EMBL; AP009044; BAF55576.1; -; Genomic_DNA.
DR   RefSeq; WP_003853869.1; NC_009342.1.
DR   AlphaFoldDB; A4QH60; -.
DR   SMR; A4QH60; -.
DR   EnsemblBacteria; BAF55576; BAF55576; cgR_2564.
DR   GeneID; 58308964; -.
DR   KEGG; cgt:cgR_2564; -.
DR   HOGENOM; CLU_061281_1_1_11; -.
DR   OMA; ERQHSVY; -.
DR   PhylomeDB; A4QH60; -.
DR   UniPathway; UPA00056; UER00093.
DR   Proteomes; UP000006698; Chromosome.
DR   GO; GO:0050518; F:2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IEA:UniProtKB-UniPathway.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02516; CDP-ME_synthetase; 1.
DR   Gene3D; 3.90.550.10; -; 1.
DR   HAMAP; MF_00108; IspD; 1.
DR   InterPro; IPR001228; IspD.
DR   InterPro; IPR034683; IspD/TarI.
DR   InterPro; IPR018294; ISPD_synthase_CS.
DR   InterPro; IPR029044; Nucleotide-diphossugar_trans.
DR   Pfam; PF01128; IspD; 1.
DR   SUPFAM; SSF53448; SSF53448; 1.
DR   TIGRFAMs; TIGR00453; ispD; 1.
DR   PROSITE; PS01295; ISPD; 1.
PE   3: Inferred from homology;
KW   Isoprene biosynthesis; Nucleotidyltransferase; Transferase.
FT   CHAIN           1..256
FT                   /note="2-C-methyl-D-erythritol 4-phosphate
FT                   cytidylyltransferase"
FT                   /id="PRO_1000022920"
FT   SITE            20
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT   SITE            27
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT   SITE            170
FT                   /note="Positions MEP for the nucleophilic attack"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT   SITE            229
FT                   /note="Positions MEP for the nucleophilic attack"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
SQ   SEQUENCE   256 AA;  27594 MW;  74874988DA914B97 CRC64;
     MSSTRIPVIA LLAAAGRGTR LGGPIPKAFV TLRERTLLER SLQAMLTSES VDEIIILVSP
     DMETYARDLL RKRGLLNDPE GVRIRLVHGG GERADSVWAG LQAILLDDAT PDAIVLIHDS
     ARALTPPGMI ARVVRKVHEG ATAVIPVLPV SDTIKRVSLD AGVVVDTPNR AELRAVQTPQ
     GFLLSELVAA NKKFFADPNP GFIPTDDASL MEWYGADVVC VQGDPMAFKV TTPIDMMLAQ
     RITDEAEPTI FEVPGD