ID   MEND_LYSSC              Reviewed;         571 AA.
AC   B1HY21;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 80.
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=Bsph_4277;
OS   Lysinibacillus sphaericus (strain C3-41).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Lysinibacillus.
OX   NCBI_TaxID=444177;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=C3-41;
RX   PubMed=18296527; DOI=10.1128/jb.01652-07;
RA   Hu X., Fan W., Han B., Liu H., Zheng D., Li Q., Dong W., Yan J., Gao M.,
RA   Berry C., Yuan Z.;
RT   "Complete genome sequence of the mosquitocidal bacterium Bacillus
RT   sphaericus C3-41 and comparison with those of closely related Bacillus
RT   species.";
RL   J. Bacteriol. 190:2892-2902(2008).
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; CP000817; ACA41736.1; -; Genomic_DNA.
DR   RefSeq; WP_012295764.1; NC_010382.1.
DR   AlphaFoldDB; B1HY21; -.
DR   SMR; B1HY21; -.
DR   PRIDE; B1HY21; -.
DR   EnsemblBacteria; ACA41736; ACA41736; Bsph_4277.
DR   KEGG; lsp:Bsph_4277; -.
DR   HOGENOM; CLU_006051_3_0_9; -.
DR   OMA; FCNRGTS; -.
DR   UniPathway; UPA00079; -.
DR   UniPathway; UPA01057; UER00164.
DR   Proteomes; UP000002164; 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; IPR029035; DHS-like_NAD/FAD-binding_dom.
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; SSF52467; SSF52467; 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..571
FT                   /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT                   carboxylate synthase"
FT                   /id="PRO_0000341771"
SQ   SEQUENCE   571 AA;  63508 MW;  B5B25D2A04EE5EEC CRC64;
     MSERKNLTDY VYKMVASLVQ VGVENVVVSP GSRSTPLAYA VASTKQIKMY RQVDERSAAF
     FALGLAKATA KPVVLLCTSG TAAANYFPAI VEASYARVPL IIITADRPHE LREVGAPQTI
     NQPHLYGSHV KWSVDFPLAD GAAPTLPFIE RHIARAVAIA TSAPFGPVHL NVPFREPLLI
     DLQDELPTMT FKHSSMGQLI PTTSAMQELS SILNSTRKGF MIVGELALGT DLAFLWEFVR
     QLKWPVIVES LSNMRAAVPE DCLPYLVTTY DAIMKSEDFK ALVQPDTVLR IGAQPVSKFI
     MQFITKTQPS AYVIIDEDPM FRDATGVSTH FIHANIDQWL THLTLTNTAF EESYLAEWQK
     ANQLASTYIE QYSEIEKDEG AMVSRLLKMI PDGSDIFVSS SMPVRDIDTF LLATPKDIRF
     FANRGTNGID GVVSTALGFS QGNDRETYLL IGDLAFLHDV NGLIATRYQE CNLTILVMNN
     DGGGIFSYLP QSTVEAHYED LFGTPTALEF QDIAHMYNMD YVRVDTIAEL SGKFSSVKKR
     PLRLVEIFTD RAENVQAHRE LWNRINAELK A