ID B3EDE0_CHLL2 Unreviewed; 248 AA.
AC B3EDE0;
DT 22-JUL-2008, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2008, sequence version 1.
DT 27-MAR-2024, entry version 95.
DE RecName: Full=2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase {ECO:0000256|HAMAP-Rule:MF_00108};
DE EC=2.7.7.60 {ECO:0000256|HAMAP-Rule:MF_00108};
DE AltName: Full=4-diphosphocytidyl-2C-methyl-D-erythritol synthase {ECO:0000256|HAMAP-Rule:MF_00108};
DE AltName: Full=MEP cytidylyltransferase {ECO:0000256|HAMAP-Rule:MF_00108};
DE Short=MCT {ECO:0000256|HAMAP-Rule:MF_00108};
GN Name=ispD {ECO:0000256|HAMAP-Rule:MF_00108};
GN OrderedLocusNames=Clim_1514 {ECO:0000313|EMBL:ACD90565.1};
OS Chlorobium limicola (strain DSM 245 / NBRC 103803 / 6330).
OC Bacteria; Chlorobiota; Chlorobiia; Chlorobiales; Chlorobiaceae;
OC Chlorobium/Pelodictyon group; Chlorobium.
OX NCBI_TaxID=290315 {ECO:0000313|EMBL:ACD90565.1, ECO:0000313|Proteomes:UP000008841};
RN [1] {ECO:0000313|EMBL:ACD90565.1, ECO:0000313|Proteomes:UP000008841}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 245 / NBRC 103803 / 6330
RC {ECO:0000313|Proteomes:UP000008841};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Ovchinnikova G., Zhao F., Li T., Liu Z.,
RA Overmann J., Bryant D.A., Richardson P.;
RT "Complete sequence of Chlorobium limicola DSM 245.";
RL Submitted (MAY-2008) 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:0000256|ARBA:ARBA00002459, ECO:0000256|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:0000256|ARBA:ARBA00001282, ECO:0000256|HAMAP-
CC 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:0000256|ARBA:ARBA00004787, ECO:0000256|HAMAP-
CC Rule:MF_00108}.
CC -!- SIMILARITY: Belongs to the IspD/TarI cytidylyltransferase family. IspD
CC subfamily. {ECO:0000256|ARBA:ARBA00009789, ECO:0000256|HAMAP-
CC Rule:MF_00108}.
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DR EMBL; CP001097; ACD90565.1; -; Genomic_DNA.
DR AlphaFoldDB; B3EDE0; -.
DR STRING; 290315.Clim_1514; -.
DR KEGG; cli:Clim_1514; -.
DR eggNOG; COG1211; Bacteria.
DR HOGENOM; CLU_061281_2_2_10; -.
DR UniPathway; UPA00056; UER00093.
DR Proteomes; UP000008841; 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 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 NCBIfam; TIGR00453; ispD; 1.
DR PANTHER; PTHR32125; 2-C-METHYL-D-ERYTHRITOL 4-PHOSPHATE CYTIDYLYLTRANSFERASE, CHLOROPLASTIC; 1.
DR PANTHER; PTHR32125:SF4; 2-C-METHYL-D-ERYTHRITOL 4-PHOSPHATE CYTIDYLYLTRANSFERASE, CHLOROPLASTIC; 1.
DR Pfam; PF01128; IspD; 1.
DR SUPFAM; SSF53448; Nucleotide-diphospho-sugar transferases; 1.
DR PROSITE; PS01295; ISPD; 1.
PE 3: Inferred from homology;
KW Isoprene biosynthesis {ECO:0000256|ARBA:ARBA00023229, ECO:0000256|HAMAP-
KW Rule:MF_00108};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695, ECO:0000256|HAMAP-
KW Rule:MF_00108};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00108}.
FT SITE 17
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 26
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 166
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 224
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
SQ SEQUENCE 248 AA; 27574 MW; 26D590A6316EE4E7 CRC64;
MTINAHAIIA ASGIGKRMQL QSGISKQLLE IGGFPVIYHT LKAFECASTI QSVSIATRAE
NIETLLEMRL TYGFHKLQAV IEGGKERQDS IRNCIKAIEK EMAASGKEPD IIMVHDGARP
FIRPSEIDAI SALTMQYGAC VPATKPKDTI KFIGNDPGFF GETPDRNRLM QVQTPQSFRS
RTLIQAHEQA ELEAWYGTDD ASLVERFFPE QLIRVYETGY HNIKITTPED VAVAEAIFGR
LMENENNG
//
