ID   MEND_ENT38              Reviewed;         556 AA.
AC   A4WCP9;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   25-MAY-2022, entry version 92.
DE   RecName: Full=2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase {ECO:0000255|HAMAP-Rule:MF_01659};
DE            Short=SEPHCHC synthase {ECO:0000255|HAMAP-Rule:MF_01659};
DE            EC=2.2.1.9 {ECO:0000255|HAMAP-Rule:MF_01659};
DE   AltName: Full=Menaquinone biosynthesis protein MenD {ECO:0000255|HAMAP-Rule:MF_01659};
GN   Name=menD {ECO:0000255|HAMAP-Rule:MF_01659}; OrderedLocusNames=Ent638_2814;
OS   Enterobacter sp. (strain 638).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Enterobacter.
OX   NCBI_TaxID=399742;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=638;
RX   PubMed=20485560; DOI=10.1371/journal.pgen.1000943;
RA   Taghavi S., van der Lelie D., Hoffman A., Zhang Y.B., Walla M.D.,
RA   Vangronsveld J., Newman L., Monchy S.;
RT   "Genome sequence of the plant growth promoting endophytic bacterium
RT   Enterobacter sp. 638.";
RL   PLoS Genet. 6:E1000943-E1000943(2010).
CC   -!- FUNCTION: Catalyzes the thiamine diphosphate-dependent decarboxylation
CC       of 2-oxoglutarate and the subsequent addition of the resulting succinic
CC       semialdehyde-thiamine pyrophosphate anion to isochorismate to yield 2-
CC       succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate (SEPHCHC).
CC       {ECO:0000255|HAMAP-Rule:MF_01659}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + H(+) + isochorismate = 5-enolpyruvoyl-6-
CC         hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2;
CC         Xref=Rhea:RHEA:25593, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:16810, ChEBI:CHEBI:29780, ChEBI:CHEBI:58818; EC=2.2.1.9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01659};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01659};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01659};
CC   -!- COFACTOR:
CC       Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01659};
CC       Note=Binds 1 thiamine pyrophosphate per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01659};
CC   -!- PATHWAY: Quinol/quinone metabolism; 1,4-dihydroxy-2-naphthoate
CC       biosynthesis; 1,4-dihydroxy-2-naphthoate from chorismate: step 2/7.
CC       {ECO:0000255|HAMAP-Rule:MF_01659}.
CC   -!- PATHWAY: Quinol/quinone metabolism; menaquinone biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01659}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01659}.
CC   -!- SIMILARITY: Belongs to the TPP enzyme family. MenD subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01659}.
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DR   EMBL; CP000653; ABP61479.1; -; Genomic_DNA.
DR   RefSeq; WP_015959812.1; NC_009436.1.
DR   AlphaFoldDB; A4WCP9; -.
DR   SMR; A4WCP9; -.
DR   STRING; 399742.Ent638_2814; -.
DR   EnsemblBacteria; ABP61479; ABP61479; Ent638_2814.
DR   KEGG; ent:Ent638_2814; -.
DR   eggNOG; COG1165; Bacteria.
DR   HOGENOM; CLU_006051_3_0_6; -.
DR   OMA; FCNRGTS; -.
DR   OrthoDB; 897995at2; -.
DR   UniPathway; UPA00079; -.
DR   UniPathway; UPA01057; UER00164.
DR   Proteomes; UP000000230; Chromosome.
DR   GO; GO:0070204; F:2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009234; P:menaquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01659; MenD; 1.
DR   InterPro; IPR004433; MenaQ_synth_MenD.
DR   InterPro; IPR032264; MenD_middle.
DR   InterPro; IPR029061; THDP-binding.
DR   InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR   InterPro; IPR011766; TPP_enzyme-bd_C.
DR   PANTHER; PTHR42916; PTHR42916; 1.
DR   Pfam; PF02775; TPP_enzyme_C; 1.
DR   Pfam; PF16582; TPP_enzyme_M_2; 1.
DR   Pfam; PF02776; TPP_enzyme_N; 1.
DR   PIRSF; PIRSF004983; MenD; 1.
DR   SUPFAM; SSF52518; SSF52518; 2.
DR   TIGRFAMs; TIGR00173; menD; 1.
PE   3: Inferred from homology;
KW   Magnesium; Manganese; Menaquinone biosynthesis; Metal-binding;
KW   Thiamine pyrophosphate; Transferase.
FT   CHAIN           1..556
FT                   /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT                   carboxylate synthase"
FT                   /id="PRO_0000341735"
SQ   SEQUENCE   556 AA;  61167 MW;  997FF10AAFC5DE1D CRC64;
     MSVSSFNRRW AAVILEALTR HGVRHVCIAP GSRSTPLTLA AAENRAFIHH THFDERGLGH
     LALGLAKVSK APVAVIVTSG TAVANLYPAL IEAGLTGEKL VLLTADRPPE LIDCGANQAI
     RQPGIFASHP AEALSLPRPT QDIPASWLVS TLDHAMGTLR HGALHINCPF AEPLYGELND
     TGVEWQQTLG DWWQSDKPWL RAQTHLQSGQ QRDWFHWRQK RGVILAGRMT AAEGKQVAEW
     AKTLGWPLIG DVLSQTGQPL PCADLWLGNA KAVTELARAQ IVIQLGSSLT GKRVLQWQST
     CEPEEYWLVD SLEGRLDPAH HRGRRLVSTI GDWLEDHPAE KRQAWATDIP ELSRLAWDLT
     TQQCERFGEA ELAHRIRQYL PDQGQLFVGN SLVVRLIDAL SKLPAGYPVY SNRGASGIDG
     LISTAAGVQR ASTKPTLAIV GDLSALYDLN ALALLRQASA PFVLIVVNNN GGQIFSLLPT
     PQSERERFYL MPQNVQFEHA AAMFSLKYHR PQSWSELDDA MSTAWRQPGA TLIELVVNDS
     DGAQKLQHLL AQVSHL