ISPD_ECOLU
ID ISPD_ECOLU Reviewed; 236 AA.
AC B7N6X7;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 25-MAY-2022, entry version 64.
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=ECUMN_3071;
OS Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585056;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UMN026 / ExPEC;
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
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 -!- SUBUNIT: Homodimer. {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; CU928163; CAR14238.1; -; Genomic_DNA.
DR RefSeq; WP_000246141.1; NC_011751.1.
DR RefSeq; YP_002413760.1; NC_011751.1.
DR AlphaFoldDB; B7N6X7; -.
DR SMR; B7N6X7; -.
DR STRING; 585056.ECUMN_3071; -.
DR EnsemblBacteria; CAR14238; CAR14238; ECUMN_3071.
DR KEGG; eum:ECUMN_3071; -.
DR PATRIC; fig|585056.7.peg.3247; -.
DR HOGENOM; CLU_061281_3_1_6; -.
DR OMA; ERQHSVY; -.
DR UniPathway; UPA00056; UER00093.
DR Proteomes; UP000007097; 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..236
FT /note="2-C-methyl-D-erythritol 4-phosphate
FT cytidylyltransferase"
FT /id="PRO_1000117442"
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 157
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT SITE 213
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
SQ SEQUENCE 236 AA; 25767 MW; 7FD2693A1C2CF201 CRC64;
MATTHLDVCA VVPAAGFGRR MQTECPKQYL SIGNQTILEH SVHALLAHPR VKRVVIAISP
GDSRFAQLPL ANHPQITVVD GGDERADSVL AGLKAAGDAQ WVLVHDAARP CLHQDDLARL
LTLSETSRTG GILAAPVRDT MKRAEPGKNA IAHTVDRNGL WHALTPQFFP RELLHDCLTR
ALNEGATITD EASALEYCGF HPQLVEGRAD NIKVTRPEDL ALAEFYLTRT IHQENT
