ID   MEND_SYNS9              Reviewed;         568 AA.
AC   Q3AVF6;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 99.
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};
GN   Name=menD {ECO:0000255|HAMAP-Rule:MF_01659};
GN   OrderedLocusNames=Syncc9902_1334;
OS   Synechococcus sp. (strain CC9902).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=316279;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9902;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Martinez M., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Synechococcus sp. CC9902.";
RL   Submitted (AUG-2005) 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=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: Cofactor biosynthesis; phylloquinone 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; CP000097; ABB26298.1; -; Genomic_DNA.
DR   RefSeq; WP_011360121.1; NC_007513.1.
DR   AlphaFoldDB; Q3AVF6; -.
DR   SMR; Q3AVF6; -.
DR   STRING; 316279.Syncc9902_1334; -.
DR   EnsemblBacteria; ABB26298; ABB26298; Syncc9902_1334.
DR   KEGG; sye:Syncc9902_1334; -.
DR   eggNOG; COG1165; Bacteria.
DR   HOGENOM; CLU_006051_4_0_3; -.
DR   OMA; FCNRGTS; -.
DR   OrthoDB; 897995at2; -.
DR   UniPathway; UPA00995; -.
DR   UniPathway; UPA01057; UER00164.
DR   Proteomes; UP000002712; 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:InterPro.
DR   GO; GO:0042372; P:phylloquinone 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; Metal-binding; Reference proteome;
KW   Thiamine pyrophosphate; Transferase.
FT   CHAIN           1..568
FT                   /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT                   carboxylate synthase"
FT                   /id="PRO_0000341871"
SQ   SEQUENCE   568 AA;  60205 MW;  E67921D9A1CCC216 CRC64;
     MQGLIELGLR RLVLCPGSRS GSLATAAGLL ASSGQLQLNT AIDERSAAFL ALGLATAGGS
     AVAVVTTSGT AVANLLPAVI EADRSCQPLL VITADRPIRL KACGANQTVN QEDFLRPACR
     WCGNGAPEGL HAMASHAVLE LAALAWSQAH GADQAAAGPV HLNLPVEEPI HAPLQEHQPL
     LDAVLASDEA SLFPLQPSTI QSNRDVPRLD PSRPGVVIAG PWRGLAQDLS AHQQAVRSWL
     VCSGWPLLAD PLSALPVELP GRLHHWDLQL EQLISPEPLQ VLRLGPLPAS RRLEVWLKRN
     AGDQVLITEG EPRYMDPLGL ATQWSGGLAA WCCAQPLDQA SRPLSADHSA WLRRDQALGL
     WLEEQLVSEG PVSEPALAFQ LADLLPPGLP VMLSASSPVR DWLTWSGRSG SDRRCFSFRG
     ASGIDGTLSL AMGLALETGP MLLVTGDLAL LHDSNGWLHG QSDGPPLVVL LIDNGGGGIF
     QQLPIEQASP KRFDALFAMP QRVNPIALAA AHGVPGRSIA VIDDLPEALS WALAQQGPVL
     LRVCTDRHAD AAFRRKLRSA AQNVEPGV