ID A0A381CRW9_CAMJU Unreviewed; 371 AA. AC A0A381CRW9; DT 07-NOV-2018, integrated into UniProtKB/TrEMBL. DT 07-NOV-2018, sequence version 1. DT 12-AUG-2020, entry version 8. DE RecName: Full=Bifunctional enzyme IspD/IspF {ECO:0000256|HAMAP-Rule:MF_01520}; DE Includes: DE RecName: Full=2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase {ECO:0000256|HAMAP-Rule:MF_01520}; DE EC=2.7.7.60 {ECO:0000256|HAMAP-Rule:MF_01520}; DE AltName: Full=4-diphosphocytidyl-2C-methyl-D-erythritol synthase {ECO:0000256|HAMAP-Rule:MF_01520}; DE AltName: Full=MEP cytidylyltransferase {ECO:0000256|HAMAP-Rule:MF_01520}; DE Short=MCT {ECO:0000256|HAMAP-Rule:MF_01520}; DE Includes: DE RecName: Full=2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase {ECO:0000256|HAMAP-Rule:MF_01520}; DE Short=MECDP-synthase {ECO:0000256|HAMAP-Rule:MF_01520}; DE Short=MECPP-synthase {ECO:0000256|HAMAP-Rule:MF_01520}; DE Short=MECPS {ECO:0000256|HAMAP-Rule:MF_01520}; DE EC=4.6.1.12 {ECO:0000256|HAMAP-Rule:MF_01520}; GN Name=ispDF {ECO:0000256|HAMAP-Rule:MF_01520, GN ECO:0000313|EMBL:SUW91978.1}; GN ORFNames=NCTC13105_00601 {ECO:0000313|EMBL:SUW91978.1}; OS Campylobacter jejuni. OC Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales; OC Campylobacteraceae; Campylobacter. OX NCBI_TaxID=197 {ECO:0000313|EMBL:SUW91978.1, ECO:0000313|Proteomes:UP000254131}; RN [1] {ECO:0000313|EMBL:SUW91978.1, ECO:0000313|Proteomes:UP000254131} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=NCTC13105 {ECO:0000313|EMBL:SUW91978.1, RC ECO:0000313|Proteomes:UP000254131}; RG Pathogen Informatics; RA Doyle S.; RL Submitted (JUN-2018) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: Bifunctional enzyme that catalyzes the formation of 4- CC diphosphocytidyl-2-C-methyl-D-erythritol from CTP and 2-C-methyl-D- CC erythritol 4-phosphate (MEP) (IspD), and catalyzes the conversion of 4- CC diphosphocytidyl-2-C-methyl-D-erythritol 2-phosphate (CDP-ME2P) to 2-C- CC methyl-D-erythritol 2,4-cyclodiphosphate (ME-CPP) with a corresponding CC release of cytidine 5-monophosphate (CMP) (IspF). {ECO:0000256|HAMAP- CC Rule:MF_01520}. 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}. 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_01520}; CC -!- CATALYTIC ACTIVITY: CC Reaction=4-CDP-2-C-methyl-D-erythritol 2-phosphate = 2-C-methyl-D- CC erythritol 2,4-cyclic diphosphate + CMP; Xref=Rhea:RHEA:23864, CC ChEBI:CHEBI:57919, ChEBI:CHEBI:58483, ChEBI:CHEBI:60377; EC=4.6.1.12; CC Evidence={ECO:0000256|ARBA:ARBA00000200, ECO:0000256|HAMAP- CC Rule:MF_01520}; CC -!- COFACTOR: CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240; CC Evidence={ECO:0000256|ARBA:ARBA00001968, CC ECO:0000256|HAMAP-Rule:MF_01520}; CC -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis CC via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5- CC phosphate: step 4/6. {ECO:0000256|ARBA:ARBA00004709, ECO:0000256|HAMAP- CC Rule:MF_01520}. CC -!- SIMILARITY: Belongs to the IspD/TarI cytidylyltransferase family. IspD CC subfamily. {ECO:0000256|ARBA:ARBA00009789}. CC -!- SIMILARITY: Belongs to the IspF family. CC {ECO:0000256|ARBA:ARBA00008480}. CC -!- SIMILARITY: In the C-terminal section; belongs to the IspF family. CC {ECO:0000256|HAMAP-Rule:MF_01520}. CC -!- SIMILARITY: In the N-terminal section; belongs to the IspD/TarI CC cytidylyltransferase family. IspD subfamily. {ECO:0000256|HAMAP- CC Rule:MF_01520}. CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01520}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; UFVB01000001; SUW91978.1; -; Genomic_DNA. DR UniPathway; UPA00056; UER00095. DR Proteomes; UP000254131; Unassembled WGS sequence. DR GO; GO:0008685; F:2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase activity; IEA:UniProtKB-UniRule. DR GO; GO:0050518; F:2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase activity; IEA:UniProtKB-UniRule. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. 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 CDD; cd00554; MECDP_synthase; 1. DR Gene3D; 3.30.1330.50; -; 1. DR Gene3D; 3.90.550.10; -; 1. DR HAMAP; MF_01520; IspDF; 1. DR HAMAP; MF_00107; IspF; 1. DR InterPro; IPR001228; IspD. DR InterPro; IPR026596; IspD/F. DR InterPro; IPR034683; IspD/TarI. DR InterPro; IPR018294; ISPD_synthase_CS. DR InterPro; IPR003526; MECDP_synthase. DR InterPro; IPR020555; MECDP_synthase_CS. DR InterPro; IPR036571; MECDP_synthase_sf. DR InterPro; IPR029044; Nucleotide-diphossugar_trans. DR Pfam; PF01128; IspD; 1. DR Pfam; PF02542; YgbB; 1. DR SUPFAM; SSF53448; SSF53448; 1. DR SUPFAM; SSF69765; SSF69765; 1. DR TIGRFAMs; TIGR00453; ispD; 1. DR TIGRFAMs; TIGR00151; ispF; 1. DR PROSITE; PS01295; ISPD; 1. DR PROSITE; PS01350; ISPF; 1. PE 3: Inferred from homology; KW Isoprene biosynthesis {ECO:0000256|ARBA:ARBA00023229, ECO:0000256|HAMAP- KW Rule:MF_01520}; KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_01520}; KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP- KW Rule:MF_01520}; KW Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268, ECO:0000256|HAMAP- KW Rule:MF_01520}; KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695, ECO:0000256|HAMAP- KW Rule:MF_01520, ECO:0000313|EMBL:SUW91978.1}; KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP- KW Rule:MF_01520, ECO:0000313|EMBL:SUW91978.1}. FT REGION 1..210 FT /note="2-C-methyl-D-erythritol 4-phosphate FT cytidylyltransferase" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 211..371 FT /note="2-C-methyl-D-erythritol 2,4-cyclodiphosphate FT synthase" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 217..219 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 243..244 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 247..255 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 265..267 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 270..274 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT REGION 340..344 FT /note="Substrate binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT METAL 217 FT /note="Divalent metal cation" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT METAL 219 FT /note="Divalent metal cation" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT METAL 251 FT /note="Divalent metal cation" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT BINDING 274 FT /note="Substrate; via carbonyl oxygen" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT BINDING 348 FT /note="Substrate; via carbonyl oxygen" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT BINDING 351 FT /note="Substrate" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 16 FT /note="Transition state stabilizer" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 23 FT /note="Transition state stabilizer" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 139 FT /note="Positions MEP for the nucleophilic attack" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 191 FT /note="Positions MEP for the nucleophilic attack" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 243 FT /note="Transition state stabilizer" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" FT SITE 342 FT /note="Transition state stabilizer" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01520" SQ SEQUENCE 371 AA; 41671 MW; 9FC2DE7A13355505 CRC64; MSEISLIMLA AGNSTRFNTK VKKQFLRLGN DPLWLYATKN LSSFYPFKKI VVTSSNITYM KKFTKNYEFI EGGDTRAESL KKALELIDSE FVMVSDVARV LVSKNLFDRL IENLDKADCI TPALKVADTT LFDNEALQRE KIKLIQTPQI SKTKLLKKAL DQNLEFTDDS TAIAAMGGKI WFVEGEENAR KLTFKEDLKK LDLPTPSFEI FTGNGFDVHE FGENRPLLLA GVQIHPTMGL KAHSDGDVLA HSLTDAILGA AGLGDIGELY PDTDMKFKNA NSMELLKQAY NKVREIGFEL INIDICVMAQ SPKLKDFKQA MQSNIAHTLD LDEFRINVKA TTTEKLGFIG RKEGMAVLSS VNLKYFDWTR L //