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ISPD_SHEPA
ID   ISPD_SHEPA              Reviewed;         231 AA.
AC   A8H1S7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   25-MAY-2022, entry version 73.
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=Spea_1187;
OS   Shewanella pealeana (strain ATCC 700345 / ANG-SQ1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=398579;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700345 / ANG-SQ1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Chertkov O., Brettin T., Bruce D., Detter J.C.,
RA   Han C., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Zhao J.-S.Z., Manno D., Hawari J., Richardson P.;
RT   "Complete sequence of Shewanella pealeana ATCC 700345.";
RL   Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000851; ABV86514.1; -; Genomic_DNA.
DR   RefSeq; WP_012154441.1; NC_009901.1.
DR   AlphaFoldDB; A8H1S7; -.
DR   SMR; A8H1S7; -.
DR   STRING; 398579.Spea_1187; -.
DR   EnsemblBacteria; ABV86514; ABV86514; Spea_1187.
DR   KEGG; spl:Spea_1187; -.
DR   eggNOG; COG1211; Bacteria.
DR   HOGENOM; CLU_061281_3_1_6; -.
DR   OMA; ERQHSVY; -.
DR   UniPathway; UPA00056; UER00093.
DR   Proteomes; UP000002608; 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; IPR029044; Nucleotide-diphossugar_trans.
DR   Pfam; PF01128; IspD; 1.
DR   SUPFAM; SSF53448; SSF53448; 1.
DR   TIGRFAMs; TIGR00453; ispD; 1.
PE   3: Inferred from homology;
KW   Isoprene biosynthesis; Nucleotidyltransferase; Reference proteome;
KW   Transferase.
FT   CHAIN           1..231
FT                   /note="2-C-methyl-D-erythritol 4-phosphate
FT                   cytidylyltransferase"
FT                   /id="PRO_1000075944"
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            156
FT                   /note="Positions MEP for the nucleophilic attack"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT   SITE            212
FT                   /note="Positions MEP for the nucleophilic attack"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
SQ   SEQUENCE   231 AA;  24742 MW;  D943F9DC3918F3FD CRC64;
     MSQTPKHIIS IVPAAGIGSR MGAEIPKQYL QLNEQSILGH TLDCLLSHPS IEKVIVALNP
     EDEFFARLPQ AQHAKLQAVI GGKERADSVL SALTVAPTDA WALVHDAARP CLNHQDIDKL
     IESASSFPQG AILGAPVRDT MKRSNAQGLI TETVCREKLW HALTPQFFPV QNLKQNLSNA
     LAAGALITDE ASAMEWAGVA PGIVAGRADN IKVTHPDDLQ LASLFLKSAA Q
 
 
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