ISPD_NITEC
ID ISPD_NITEC Reviewed; 233 AA.
AC Q0AFW3;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 17-OCT-2006, sequence version 1.
DT 25-MAY-2022, entry version 82.
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=Neut_1525;
OS Nitrosomonas eutropha (strain DSM 101675 / C91 / Nm57).
OC Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC Nitrosomonadaceae; Nitrosomonas.
OX NCBI_TaxID=335283;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 101675 / C91 / Nm57;
RX PubMed=17991028; DOI=10.1111/j.1462-2920.2007.01409.x;
RA Stein L.Y., Arp D.J., Berube P.M., Chain P.S., Hauser L., Jetten M.S.,
RA Klotz M.G., Larimer F.W., Norton J.M., Op den Camp H.J.M., Shin M., Wei X.;
RT "Whole-genome analysis of the ammonia-oxidizing bacterium, Nitrosomonas
RT eutropha C91: implications for niche adaptation.";
RL Environ. Microbiol. 9:2993-3007(2007).
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; CP000450; ABI59769.1; -; Genomic_DNA.
DR RefSeq; WP_011634575.1; NC_008344.1.
DR AlphaFoldDB; Q0AFW3; -.
DR SMR; Q0AFW3; -.
DR STRING; 335283.Neut_1525; -.
DR EnsemblBacteria; ABI59769; ABI59769; Neut_1525.
DR KEGG; net:Neut_1525; -.
DR eggNOG; COG1211; Bacteria.
DR HOGENOM; CLU_061281_3_0_4; -.
DR OMA; ERQHSVY; -.
DR OrthoDB; 1836139at2; -.
DR UniPathway; UPA00056; UER00093.
DR Proteomes; UP000001966; 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..233
FT /note="2-C-methyl-D-erythritol 4-phosphate
FT cytidylyltransferase"
FT /id="PRO_1000022934"
FT SITE 16
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT SITE 23
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00108"
FT SITE 160
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 233 AA; 25596 MW; A7DBC810803FB655 CRC64;
MVKFIALITA AGSGSRMGED IPKQYRPLAG KPMIYHALRT LCGIARISTV CIVLAPEDTE
WIRHNWREFA GKIQIFNCGG ATRAESVTNG LKALRAANHV QDQDWILVHD AARPGLSTTL
VERLLDQLAD DEVGGLLAVP LADTLKRADD AGRVICTEPR ERLWQAQTPQ MFRMKLLLEA
LEKAPAGITD DASAVEALGL SPKLVVGNAY NFKVTYPQDL KLAELILRER AIT
