MEND_HALWD
ID MEND_HALWD Reviewed; 619 AA.
AC Q18J11;
DT 01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT 25-JUL-2006, sequence version 1.
DT 03-AUG-2022, entry version 103.
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=HQ_1873A;
OS Haloquadratum walsbyi (strain DSM 16790 / HBSQ001).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Haloferacaceae; Haloquadratum.
OX NCBI_TaxID=362976;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16790 / HBSQ001;
RX PubMed=16820047; DOI=10.1186/1471-2164-7-169;
RA Bolhuis H., Palm P., Wende A., Falb M., Rampp M., Rodriguez-Valera F.,
RA Pfeiffer F., Oesterhelt D.;
RT "The genome of the square archaeon Haloquadratum walsbyi: life at the
RT limits of water activity.";
RL BMC Genomics 7:169-169(2006).
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; AM180088; CAJ52001.1; -; Genomic_DNA.
DR RefSeq; WP_011571148.1; NC_008212.1.
DR AlphaFoldDB; Q18J11; -.
DR SMR; Q18J11; -.
DR STRING; 362976.HQ_1873A; -.
DR EnsemblBacteria; CAJ52001; CAJ52001; HQ_1873A.
DR GeneID; 4194259; -.
DR KEGG; hwa:HQ_1873A; -.
DR eggNOG; arCOG04611; Archaea.
DR HOGENOM; CLU_006051_3_0_2; -.
DR OMA; FCNRGTS; -.
DR UniPathway; UPA00079; -.
DR UniPathway; UPA01057; UER00164.
DR Proteomes; UP000001975; 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 GO; GO:0006082; P:organic acid metabolic process; IEA:UniProt.
DR GO; GO:0044272; P:sulfur compound biosynthetic process; IEA:UniProt.
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..619
FT /note="2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-
FT carboxylate synthase"
FT /id="PRO_0000341899"
FT REGION 385..415
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 385..401
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 619 AA; 66903 MW; DC891CA58BB7D5BB CRC64;
MSAPNQNTLW ARTFVSELAA SGVDTVCISP GSRSTPLTVA FDRHDSIETF SHLDERSAAY
FALGRARRTG SVTPVVCTSG TAAANYHPAV IEASQARVPL LVLTADRPPE LHDSGANQTV
DQTKLYGDAV RWFHDIGEPE PTARKLRSLR TTAARSIMTA TDTPAGPVHL NFPFRKPLEP
TPVPGDIPDD LSEESITGRD GAFVESTTGN RVLDENSVNR IAQSLSTSRG LIVVGPMTIP
GVDPEAVAAF AHASGFPVLA DPLSGIRYGG LTRTTPIIGG YDGYLTSELW DQWPDPDVVL
RFGASPTSKP LRQYLESTSP TQYLVDPAGE WREATFTATD IVVADPTQLL WQLSRALNTP
GSSTWRQRWI EADKAHTDVL ANTDSSAHQS LAATNSDSST DDIIENTDEE GSNESDRWFC
EGRILSDVMT AAPDPATIFV SNSMPVRDLD RFGSPTTQNR TVLGNRGASG IDGIISTALG
AGSALATTEH LIAITGDLAY YHDMNGLAAL ERCDVTATIV LINNDGGGIF HKLPIESYDP
PFTTQFVTPH GLDFEPTEDI YDLSFARVRG TDRDGFHTAF TEATTTTGSH VIEVVTDSES
SHRVREQLHD RVIKRILDN
