ID   MEND_MYCSK              Reviewed;         547 AA.
AC   A1UAX3;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   05-FEB-2025, entry version 98.
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};
GN   OrderedLocusNames=Mkms_0765;
OS   Mycobacterium sp. (strain KMS).
OC   Bacteria; Bacillati; Actinomycetota; Actinomycetes; Mycobacteriales;
OC   Mycobacteriaceae; Mycobacterium.
OX   NCBI_TaxID=189918;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KMS;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Kiss H., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Miller C.D.,
RA   Richardson P.;
RT   "Complete sequence of chromosome of Mycobacterium sp. KMS.";
RL   Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases.
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=isochorismate + 2-oxoglutarate + H(+) = 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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01659};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000255|HAMAP-
CC         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; CP000518; ABL89981.1; -; Genomic_DNA.
DR   AlphaFoldDB; A1UAX3; -.
DR   SMR; A1UAX3; -.
DR   STRING; 189918.Mkms_0765; -.
DR   KEGG; mkm:Mkms_0765; -.
DR   HOGENOM; CLU_006051_4_1_11; -.
DR   OrthoDB; 9791859at2; -.
DR   UniPathway; UPA00079; -.
DR   UniPathway; UPA01057; UER00164.
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   CDD; cd07037; TPP_PYR_MenD; 1.
DR   CDD; cd02009; TPP_SHCHC_synthase; 1.
DR   Gene3D; 3.40.50.970; -; 2.
DR   Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR   HAMAP; MF_01659; MenD; 1.
DR   InterPro; IPR004433; MenaQ_synth_MenD.
DR   InterPro; IPR029061; THDP-binding.
DR   InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR   NCBIfam; TIGR00173; menD; 1.
DR   PANTHER; PTHR42916; 2-SUCCINYL-5-ENOLPYRUVYL-6-HYDROXY-3-CYCLOHEXENE-1-CARBOXYLATE SYNTHASE; 1.
DR   PANTHER; PTHR42916:SF1; PROTEIN PHYLLO, CHLOROPLASTIC; 1.
DR   Pfam; PF02776; TPP_enzyme_N; 1.
DR   PIRSF; PIRSF004983; MenD; 1.
DR   SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
PE   3: Inferred from homology;
KW   Magnesium; Manganese; Menaquinone biosynthesis; Metal-binding;
KW   Thiamine pyrophosphate; Transferase.
FT   CHAIN           1..547
FT                   /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT                   carboxylate synthase"
FT                   /id="PRO_0000341782"
SQ   SEQUENCE   547 AA;  57160 MW;  95627771DCCEF164 CRC64;
     MNPSTAQARV VVDELVRGGV HDVVLCPGSR NAPLAFALAD ADRAGRLRLH VRIDERTAGF
     LAIGLAVADR APVCVAMTSG TAVANLGPAV VEANYARVPL IVLSANRPYE LLGTGANQTF
     EQLGYFGNQV RANISLGLAP ELSSGSPGDM TSLNAQWRSA TCRVVVAATG SRSANAGPVQ
     FDIPLREPLV PTFDDDGSCP PGRPDGKPWT HTPPVTFDQP LDIDLTPDTV VIAGHGAGVH
     PNLADLPTVA EPTAPPAANP LHPMALRLLR PKQVIMLGRP TLHRPVSALL ADPSVPVYAL
     TTGPRWPDVS GNSQATGTRA VTSGTPDPAW LRRCKEVNDH AVAAVREQLA AHPLTTGLHV
     AAAVADAVRP GDQLVLGASN PVRDAALVGF TPHGVQVRSN RGVAGIDGTV STAIGAALAH
     DRTGGRTIAL MGDLTFVHDS SGLLIGPTEP TPRNLTIVVS NDNGGGIFEL LEQGDPRFSD
     VSSRVFGTPH DVDVGALCRA YHVDNRQIEV GQLADALDEP HEGMRVLEVK ADRSSLRALH
     ASIKAAL
//