MEND_OCEIH
ID MEND_OCEIH Reviewed; 579 AA.
AC Q8CZD8;
DT 01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 25-MAY-2022, entry version 113.
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=OB2325;
OS Oceanobacillus iheyensis (strain DSM 14371 / CIP 107618 / JCM 11309 / KCTC
OS 3954 / HTE831).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Oceanobacillus.
OX NCBI_TaxID=221109;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14371 / CIP 107618 / JCM 11309 / KCTC 3954 / HTE831;
RX PubMed=12235376; DOI=10.1093/nar/gkf526;
RA Takami H., Takaki Y., Uchiyama I.;
RT "Genome sequence of Oceanobacillus iheyensis isolated from the Iheya Ridge
RT and its unexpected adaptive capabilities to extreme environments.";
RL Nucleic Acids Res. 30:3927-3935(2002).
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; BA000028; BAC14281.1; -; Genomic_DNA.
DR RefSeq; WP_011066718.1; NC_004193.1.
DR AlphaFoldDB; Q8CZD8; -.
DR SMR; Q8CZD8; -.
DR STRING; 221109.22778010; -.
DR PRIDE; Q8CZD8; -.
DR EnsemblBacteria; BAC14281; BAC14281; BAC14281.
DR KEGG; oih:OB2325; -.
DR eggNOG; COG1165; Bacteria.
DR HOGENOM; CLU_006051_3_0_9; -.
DR OMA; FCNRGTS; -.
DR OrthoDB; 897995at2; -.
DR PhylomeDB; Q8CZD8; -.
DR UniPathway; UPA00079; -.
DR UniPathway; UPA01057; UER00164.
DR Proteomes; UP000000822; 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 Reference proteome; Thiamine pyrophosphate; Transferase.
FT CHAIN 1..579
FT /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT carboxylate synthase"
FT /id="PRO_0000341792"
SQ SEQUENCE 579 AA; 64713 MW; 7217E1D0338E3E05 CRC64;
MDYTEKLTRY VANFVDELAK SGVTDVVVSP GSRSTPLALV FTEHPSIKEW IIVDERSAAF
FALGLAKKSN RAVAIVCTSG TAAANYYPAI VEAHYSRVPL LVLTADRPHE LRHIGAPQTI
EQIKMYGDYT KWFHEMAMPE ASDKMLHYVR NKASHAKHVA EEGNPGVVHL NFPLREPLTP
NFSLDAIWGT KSYTRQNIMQ EGTKQLAPNQ LQILLEEVGP NKKGLFVCGP QADAEFADAV
TSLAGKWGIP VVADPLSQLR TGQHHKDNVI DGYDAFLREA EIRQELKPDY IIRFGAMPVS
KSYLFYVMEN VETQQYVIEP NEGIRDHSSN QTTFLFADPT TLCQQLEQMT VVDQDVSTAW
LKTWQEMNQI AKHYLLEGVE EQITEGEAVR GLAEVIPDGS TLYVGNSMAI RDVDTFYMTS
PKTINILANR GANGIDGMVS SGVGASADNE RVTLLLGDLS LFHDMNGLFA AKHYKLPITI
VLINNNGGGI FSFLPQAKDK RHFEALFGTP MDLSFEQVAK LYEANYNHVK TEEQLKAALY
ESYQLDGLSI IEVKTDREQN VQWHQAKWQL IKEAILKDG
