ID   MTNC_KLEP7              Reviewed;         229 AA.
AC   A6T673;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=Enolase-phosphatase E1 {ECO:0000255|HAMAP-Rule:MF_01681};
DE            EC=3.1.3.77 {ECO:0000255|HAMAP-Rule:MF_01681};
DE   AltName: Full=2,3-diketo-5-methylthio-1-phosphopentane phosphatase {ECO:0000255|HAMAP-Rule:MF_01681};
GN   Name=mtnC {ECO:0000255|HAMAP-Rule:MF_01681};
GN   OrderedLocusNames=KPN78578_06330; ORFNames=KPN_00644;
OS   Klebsiella pneumoniae subsp. pneumoniae (strain ATCC 700721 / MGH 78578).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=272620;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700721 / MGH 78578;
RG   The Klebsiella pneumonia Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Spieth J., Clifton W.S., Latreille P.,
RA   Sabo A., Pepin K., Bhonagiri V., Porwollik S., Ali J., Wilson R.K.;
RL   Submitted (SEP-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Bifunctional enzyme that catalyzes the enolization of 2,3-
CC       diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P) into the
CC       intermediate 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate (HK-
CC       MTPenyl-1-P), which is then dephosphorylated to form the acireductone
CC       1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene).
CC       {ECO:0000255|HAMAP-Rule:MF_01681}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-methylsulfanyl-2,3-dioxopentyl phosphate + H2O = 1,2-
CC         dihydroxy-5-(methylsulfanyl)pent-1-en-3-one + phosphate;
CC         Xref=Rhea:RHEA:21700, ChEBI:CHEBI:15377, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:49252, ChEBI:CHEBI:58828; EC=3.1.3.77;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01681};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01681};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01681};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC       pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate:
CC       step 3/6. {ECO:0000255|HAMAP-Rule:MF_01681}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC       pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate:
CC       step 4/6. {ECO:0000255|HAMAP-Rule:MF_01681}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01681}.
CC   -!- SIMILARITY: Belongs to the HAD-like hydrolase superfamily. MasA/MtnC
CC       family. {ECO:0000255|HAMAP-Rule:MF_01681}.
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DR   EMBL; CP000647; ABR76094.1; -; Genomic_DNA.
DR   RefSeq; WP_012068444.1; NC_009648.1.
DR   AlphaFoldDB; A6T673; -.
DR   SMR; A6T673; -.
DR   STRING; 272620.KPN_00644; -.
DR   EnsemblBacteria; ABR76094; ABR76094; KPN_00644.
DR   KEGG; kpn:KPN_00644; -.
DR   HOGENOM; CLU_023273_0_0_6; -.
DR   OMA; QLKGHVY; -.
DR   UniPathway; UPA00904; UER00876.
DR   UniPathway; UPA00904; UER00877.
DR   Proteomes; UP000000265; Chromosome.
DR   GO; GO:0043715; F:2,3-diketo-5-methylthiopentyl-1-phosphate enolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043716; F:2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043874; F:acireductone synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR   CDD; cd01629; HAD_EP; 1.
DR   Gene3D; 3.40.50.1000; -; 1.
DR   HAMAP; MF_01681; Salvage_MtnC; 1.
DR   InterPro; IPR023943; Enolase-ppase_E1.
DR   InterPro; IPR036412; HAD-like_sf.
DR   InterPro; IPR006439; HAD-SF_hydro_IA.
DR   InterPro; IPR023214; HAD_sf.
DR   PRINTS; PR00413; HADHALOGNASE.
DR   SFLD; SFLDF00044; enolase-phosphatase; 1.
DR   SUPFAM; SSF56784; SSF56784; 1.
DR   TIGRFAMs; TIGR01691; enolase-ppase; 1.
DR   TIGRFAMs; TIGR01549; HAD-SF-IA-v1; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Hydrolase; Magnesium; Metal-binding;
KW   Methionine biosynthesis; Reference proteome.
FT   CHAIN           1..229
FT                   /note="Enolase-phosphatase E1"
FT                   /id="PRO_0000357374"
FT   REGION          207..229
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   229 AA;  25502 MW;  B85AB6AD8415AC0B CRC64;
     MIRAIVTDIE GTTSDIRFVH NVLFPYARER LAGFVTAQQH AEPVKTILDN LRRETDAPAA
     STADLITTLF AFMDEDRKST ALKALQGIIW RDGYLNGDFT GHLYPDVLPA LEQWKAQGID
     LYVYSSGSVA AQKLLFGYSD EGDITHLFTG YFDTLVGAKR EVQSYRNIAE HLGHAPGTIL
     FLSDIHQELD AAEAAGLRTI QLVRGDRDPA SHHPQVQRFD DIHPEQIPA