ID D8PHD6_9BACT Unreviewed; 247 AA.
AC D8PHD6;
DT 05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2010, sequence version 1.
DT 24-JAN-2024, entry version 77.
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 ECO:0000313|EMBL:CBK42673.1};
GN ORFNames=NIDE2977 {ECO:0000313|EMBL:CBK42673.1};
OS Nitrospira defluvii.
OC Bacteria; Nitrospirota; Nitrospiria; Nitrospirales; Nitrospiraceae;
OC Nitrospira.
OX NCBI_TaxID=330214 {ECO:0000313|EMBL:CBK42673.1, ECO:0000313|Proteomes:UP000001660};
RN [1] {ECO:0000313|EMBL:CBK42673.1, ECO:0000313|Proteomes:UP000001660}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=20624973; DOI=10.1073/pnas.1003860107;
RA Lucker S., Wagner M., Maixner F., Pelletier E., Koch H., Vacherie B.,
RA Rattei T., Sinninghe Damste J., Spieck E., Le Paslier D., Daims H.;
RT "A Nitrospira metagenome illuminates the physiology and evolution of
RT globally important nitrite-oxidizing bacteria.";
RL Proc. Natl. Acad. Sci. U.S.A. 0:13479-13484(2010).
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; FP929003; CBK42673.1; -; Genomic_DNA.
DR AlphaFoldDB; D8PHD6; -.
DR STRING; 330214.NIDE2977; -.
DR KEGG; nde:NIDE2977; -.
DR eggNOG; COG1211; Bacteria.
DR HOGENOM; CLU_061281_2_2_0; -.
DR OrthoDB; 9806837at2; -.
DR UniPathway; UPA00056; UER00093.
DR Proteomes; UP000001660; 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:UP000001660};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00108}.
FT SITE 27
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 34
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 167
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
FT SITE 223
FT /note="Positions MEP for the nucleophilic attack"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00108"
SQ SEQUENCE 247 AA; 26574 MW; 614D790BEB20C824 CRC64;
MSARNAKPSP AGPRTVALVP AAGRGLRMGG HIPKQFLALG GRPILAQSLL VLQASPLIHE
IILAVPQSER QYCLDHIVAT GEFSKVTKVV PGGVQRQDSV RHALAEVSQE TEIVLVHDAV
RPFLTEDMIR RVVAAAVEHG AAIIALPMRD TVKYVGAGGV IERTVDRRPL WLAQTPQAFR
RDWLEEGHHK ALLAGVQATD DAHLVELIGK PVVVVEGSGE NIKVTRPEDL VIGEAILNSR
TAARSAE
//
