MENH_ECOK1
ID MENH_ECOK1 Reviewed; 252 AA.
AC A1ADB5;
DT 01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 1.
DT 25-MAY-2022, entry version 81.
DE RecName: Full=2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase {ECO:0000255|HAMAP-Rule:MF_01660};
DE Short=SHCHC synthase {ECO:0000255|HAMAP-Rule:MF_01660};
DE EC=4.2.99.20 {ECO:0000255|HAMAP-Rule:MF_01660};
GN Name=menH {ECO:0000255|HAMAP-Rule:MF_01660}; OrderedLocusNames=Ecok1_21610;
GN ORFNames=APECO1_4298;
OS Escherichia coli O1:K1 / APEC.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=405955;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=17293413; DOI=10.1128/jb.01726-06;
RA Johnson T.J., Kariyawasam S., Wannemuehler Y., Mangiamele P., Johnson S.J.,
RA Doetkott C., Skyberg J.A., Lynne A.M., Johnson J.R., Nolan L.K.;
RT "The genome sequence of avian pathogenic Escherichia coli strain O1:K1:H7
RT shares strong similarities with human extraintestinal pathogenic E. coli
RT genomes.";
RL J. Bacteriol. 189:3228-3236(2007).
CC -!- FUNCTION: Catalyzes a proton abstraction reaction that results in 2,5-
CC elimination of pyruvate from 2-succinyl-5-enolpyruvyl-6-hydroxy-3-
CC cyclohexene-1-carboxylate (SEPHCHC) and the formation of 2-succinyl-6-
CC hydroxy-2,4-cyclohexadiene-1-carboxylate (SHCHC). {ECO:0000255|HAMAP-
CC Rule:MF_01660}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-
CC carboxylate = (1R,6R)-6-hydroxy-2-succinyl-cyclohexa-2,4-diene-1-
CC carboxylate + pyruvate; Xref=Rhea:RHEA:25597, ChEBI:CHEBI:15361,
CC ChEBI:CHEBI:58689, ChEBI:CHEBI:58818; EC=4.2.99.20;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01660};
CC -!- PATHWAY: Quinol/quinone metabolism; 1,4-dihydroxy-2-naphthoate
CC biosynthesis; 1,4-dihydroxy-2-naphthoate from chorismate: step 3/7.
CC {ECO:0000255|HAMAP-Rule:MF_01660}.
CC -!- PATHWAY: Quinol/quinone metabolism; menaquinone biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_01660}.
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01660}.
CC -!- SIMILARITY: Belongs to the AB hydrolase superfamily. MenH family.
CC {ECO:0000255|HAMAP-Rule:MF_01660}.
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DR EMBL; CP000468; ABJ01655.1; -; Genomic_DNA.
DR RefSeq; WP_000600529.1; NC_008563.1.
DR AlphaFoldDB; A1ADB5; -.
DR SMR; A1ADB5; -.
DR ESTHER; ecoli-YFBB; MenH_SHCHC.
DR MEROPS; S33.996; -.
DR EnsemblBacteria; ABJ01655; ABJ01655; APECO1_4298.
DR KEGG; ecv:APECO1_4298; -.
DR HOGENOM; CLU_020336_38_2_6; -.
DR OMA; LNDWYQQ; -.
DR UniPathway; UPA00079; -.
DR UniPathway; UPA01057; UER00900.
DR Proteomes; UP000008216; Chromosome.
DR GO; GO:0070205; F:2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009234; P:menaquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.1820; -; 1.
DR HAMAP; MF_01660; MenH; 1.
DR InterPro; IPR029058; AB_hydrolase.
DR InterPro; IPR000073; AB_hydrolase_1.
DR InterPro; IPR022485; SHCHC_synthase_MenH.
DR Pfam; PF12697; Abhydrolase_6; 1.
DR SUPFAM; SSF53474; SSF53474; 1.
DR TIGRFAMs; TIGR03695; menH_SHCHC; 1.
PE 3: Inferred from homology;
KW Lyase; Menaquinone biosynthesis.
FT CHAIN 1..252
FT /note="2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-
FT carboxylate synthase"
FT /id="PRO_0000341911"
SQ SEQUENCE 252 AA; 27657 MW; 69CE408FEBDC4230 CRC64;
MILHAQAKHG KPGLPWLVFL HGFSGDCHEW QEVGEAFADY SRLYVDLPGH GGSATISVDG
FDDVTGLLCK TLVSYNILNF WLVGYSLGGR VAMMAACQEP AGLCGVVVEG GHPGLQNAEQ
RAERQRSDRQ WAQRFRTEPL TAVFADWYQQ PVFASLNDDQ RRELVALRSN NNGATLAAML
EATSLAVQPD LRANLSARTF AFYYLCGERD SKFRALAAEL AADCHVIPRA GHNAHRENPA
GVIASLAQIL RF
