ID   MENC_SALCH              Reviewed;         320 AA.
AC   Q57M50;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-MAY-2005, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=o-succinylbenzoate synthase {ECO:0000255|HAMAP-Rule:MF_00470};
DE            Short=OSB synthase {ECO:0000255|HAMAP-Rule:MF_00470};
DE            Short=OSBS {ECO:0000255|HAMAP-Rule:MF_00470};
DE            EC=4.2.1.113 {ECO:0000255|HAMAP-Rule:MF_00470};
DE   AltName: Full=4-(2'-carboxyphenyl)-4-oxybutyric acid synthase {ECO:0000255|HAMAP-Rule:MF_00470};
DE   AltName: Full=o-succinylbenzoic acid synthase {ECO:0000255|HAMAP-Rule:MF_00470};
GN   Name=menC {ECO:0000255|HAMAP-Rule:MF_00470}; OrderedLocusNames=SCH_2306;
OS   Salmonella choleraesuis (strain SC-B67).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=321314;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SC-B67;
RX   PubMed=15781495; DOI=10.1093/nar/gki297;
RA   Chiu C.-H., Tang P., Chu C., Hu S., Bao Q., Yu J., Chou Y.-Y., Wang H.-S.,
RA   Lee Y.-S.;
RT   "The genome sequence of Salmonella enterica serovar Choleraesuis, a highly
RT   invasive and resistant zoonotic pathogen.";
RL   Nucleic Acids Res. 33:1690-1698(2005).
CC   -!- FUNCTION: Converts 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-
CC       carboxylate (SHCHC) to 2-succinylbenzoate (OSB). {ECO:0000255|HAMAP-
CC       Rule:MF_00470}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(1R,6R)-6-hydroxy-2-succinyl-cyclohexa-2,4-diene-1-carboxylate
CC         = 2-succinylbenzoate + H2O; Xref=Rhea:RHEA:10196, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:18325, ChEBI:CHEBI:58689; EC=4.2.1.113;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00470};
CC   -!- COFACTOR:
CC       Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00470};
CC   -!- PATHWAY: Quinol/quinone metabolism; 1,4-dihydroxy-2-naphthoate
CC       biosynthesis; 1,4-dihydroxy-2-naphthoate from chorismate: step 4/7.
CC       {ECO:0000255|HAMAP-Rule:MF_00470}.
CC   -!- PATHWAY: Quinol/quinone metabolism; menaquinone biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00470}.
CC   -!- SIMILARITY: Belongs to the mandelate racemase/muconate lactonizing
CC       enzyme family. MenC type 1 subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00470}.
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DR   EMBL; AE017220; AAX66212.1; -; Genomic_DNA.
DR   RefSeq; WP_001255561.1; NC_006905.1.
DR   AlphaFoldDB; Q57M50; -.
DR   SMR; Q57M50; -.
DR   EnsemblBacteria; AAX66212; AAX66212; SCH_2306.
DR   KEGG; sec:SCH_2306; -.
DR   HOGENOM; CLU_030273_0_1_6; -.
DR   OMA; YEANRDG; -.
DR   UniPathway; UPA00079; -.
DR   UniPathway; UPA01057; UER00165.
DR   Proteomes; UP000000538; Chromosome.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0043748; F:O-succinylbenzoate synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009234; P:menaquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.120; -; 1.
DR   Gene3D; 3.30.390.10; -; 1.
DR   HAMAP; MF_00470; MenC_1; 1.
DR   InterPro; IPR036849; Enolase-like_C_sf.
DR   InterPro; IPR029017; Enolase-like_N.
DR   InterPro; IPR029065; Enolase_C-like.
DR   InterPro; IPR013342; Mandelate_racemase_C.
DR   InterPro; IPR010196; OSB_synthase_MenC1.
DR   Pfam; PF13378; MR_MLE_C; 1.
DR   SMART; SM00922; MR_MLE; 1.
DR   SUPFAM; SSF51604; SSF51604; 1.
DR   SUPFAM; SSF54826; SSF54826; 1.
PE   3: Inferred from homology;
KW   Lyase; Magnesium; Menaquinone biosynthesis; Metal-binding.
FT   CHAIN           1..320
FT                   /note="o-succinylbenzoate synthase"
FT                   /id="PRO_1000013809"
FT   ACT_SITE        133
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00470"
FT   ACT_SITE        235
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00470"
FT   BINDING         161
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00470"
FT   BINDING         190
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00470"
FT   BINDING         213
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00470"
SQ   SEQUENCE   320 AA;  35360 MW;  C88260F7A06C2FD8 CRC64;
     MRSAQVYRWQ IPMDAGVVLR DRRLKTRDGL YVCLRDGERE GWGEISPLPG FSQETWEEAQ
     TALLTWVNDW LQGSEGLPEM PSVAFGASCA LAELTGVLPE AADYRAAPLC TGDPDDLVLR
     LADMPGEKIA KVKVGLYEAV RDGMVVNLLL EAIPDLHLRL DANRAWTPLK AQQFAKYVNP
     DYRARIAFLE EPCKTRDDSR AFARETGIAI AWDESLREAD FTFEAEEGVR AVVIKPTLTG
     SLDKVREQVA AAHALGLTAV ISSSIESSLG LTQLARIAAW LTPGTLPGLD TLHLMQAQQI
     RPWPGSALPC LKREELERLL