ID K9SBW8_9CYAN Unreviewed; 231 AA.
AC K9SBW8;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 24-JAN-2024, entry version 57.
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 ORFNames=GEI7407_3235 {ECO:0000313|EMBL:AFY67703.1};
OS Geitlerinema sp. PCC 7407.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Geitlerinematales;
OC Geitlerinemataceae; Geitlerinema.
OX NCBI_TaxID=1173025 {ECO:0000313|EMBL:AFY67703.1, ECO:0000313|Proteomes:UP000010383};
RN [1] {ECO:0000313|EMBL:AFY67703.1, ECO:0000313|Proteomes:UP000010383}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7407 {ECO:0000313|EMBL:AFY67703.1,
RC ECO:0000313|Proteomes:UP000010383};
RG US DOE Joint Genome Institute;
RA Gugger M., Coursin T., Rippka R., Tandeau De Marsac N., Huntemann M.,
RA Wei C.-L., Han J., Detter J.C., Han C., Tapia R., Davenport K.,
RA Daligault H., Erkkila T., Gu W., Munk A.C.C., Teshima H., Xu Y., Chain P.,
RA Chen A., Krypides N., Mavromatis K., Markowitz V., Szeto E., Ivanova N.,
RA Mikhailova N., Ovchinnikova G., Pagani I., Pati A., Goodwin L., Peters L.,
RA Pitluck S., Woyke T., Kerfeld C.;
RT "Finished genome of Geitlerinema sp. PCC 7407.";
RL Submitted (MAY-2012) 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; CP003591; AFY67703.1; -; Genomic_DNA.
DR RefSeq; WP_015173267.1; NC_019703.1.
DR AlphaFoldDB; K9SBW8; -.
DR STRING; 1173025.GEI7407_3235; -.
DR KEGG; gei:GEI7407_3235; -.
DR PATRIC; fig|1173025.3.peg.3611; -.
DR eggNOG; COG1211; Bacteria.
DR HOGENOM; CLU_061281_1_0_3; -.
DR OrthoDB; 9806837at2; -.
DR UniPathway; UPA00056; UER00093.
DR Proteomes; UP000010383; 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}; Reference proteome {ECO:0000313|Proteomes:UP000010383};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00108}.
FT SITE 13
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 20
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 152
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 208
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
SQ SEQUENCE 231 AA; 24883 MW; 3991F6C458C6F0E4 CRC64;
MHLLIPAAGV GRRMGSDRNK LLLTLLGKPI LSWTLLAAEA SQSISWIGII GQPEDYPDFK
DILAAIALTK PVALIQGGTT RQGSVYNGLK GLPADAERVL IHDGARCLAT PELFDRCAAA
LLECSGLIAA VPVKDTIKVV GDQREIIDTP DRSNLWAAQT PQGFEVKTLR QCHDEGDRLG
WSVTDDAALF EKCGLPVHIV EGEETNLKVT TPVDLAIAEF ILRQRSQSAP A
//
