ID   CATC_ACIAD              Reviewed;          96 AA.
AC   Q43932;
DT   15-JUL-1999, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 121.
DE   RecName: Full=Muconolactone Delta-isomerase;
DE            Short=MIase;
DE            EC=5.3.3.4 {ECO:0000250|UniProtKB:P00948};
GN   Name=catC; OrderedLocusNames=ACIAD1447;
OS   Acinetobacter baylyi (strain ATCC 33305 / BD413 / ADP1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter.
OX   NCBI_TaxID=62977;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8125318; DOI=10.1016/0378-1119(94)90783-8;
RA   Shanley M.S., Harrison A., Parales R.E., Kowalchuk G., Mitchell D.J.,
RA   Ornston L.N.;
RT   "Unusual G + C content and codon usage in catIJF, a segment of the ben-cat
RT   supra-operonic cluster in the Acinetobacter calcoaceticus chromosome.";
RL   Gene 138:59-65(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33305 / BD413 / ADP1;
RX   PubMed=15514110; DOI=10.1093/nar/gkh910;
RA   Barbe V., Vallenet D., Fonknechten N., Kreimeyer A., Oztas S., Labarre L.,
RA   Cruveiller S., Robert C., Duprat S., Wincker P., Ornston L.N.,
RA   Weissenbach J., Marliere P., Cohen G.N., Medigue C.;
RT   "Unique features revealed by the genome sequence of Acinetobacter sp. ADP1,
RT   a versatile and naturally transformation competent bacterium.";
RL   Nucleic Acids Res. 32:5766-5779(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-muconolactone = (4,5-dihydro-5-oxofuran-2-yl)-acetate;
CC         Xref=Rhea:RHEA:12348, ChEBI:CHEBI:58425, ChEBI:CHEBI:58736;
CC         EC=5.3.3.4; Evidence={ECO:0000250|UniProtKB:P00948};
CC   -!- PATHWAY: Aromatic compound metabolism; beta-ketoadipate pathway; 5-oxo-
CC       4,5-dihydro-2-furylacetate from catechol: step 3/3.
CC   -!- SUBUNIT: Homodecamer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the muconolactone Delta-isomerase family.
CC       {ECO:0000305}.
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DR   EMBL; AF009224; AAC46431.1; -; Genomic_DNA.
DR   EMBL; CR543861; CAG68310.1; -; Genomic_DNA.
DR   RefSeq; WP_004925455.1; NC_005966.1.
DR   AlphaFoldDB; Q43932; -.
DR   SMR; Q43932; -.
DR   STRING; 62977.ACIAD1447; -.
DR   EnsemblBacteria; CAG68310; CAG68310; ACIAD1447.
DR   GeneID; 45233859; -.
DR   GeneID; 67510885; -.
DR   KEGG; aci:ACIAD1447; -.
DR   eggNOG; COG4829; Bacteria.
DR   HOGENOM; CLU_080702_2_0_6; -.
DR   OMA; MCRHPSS; -.
DR   OrthoDB; 1857318at2; -.
DR   BioCyc; ASP62977:ACIAD_RS06685-MON; -.
DR   UniPathway; UPA00157; UER00260.
DR   Proteomes; UP000000430; Chromosome.
DR   GO; GO:0016159; F:muconolactone delta-isomerase activity; IEA:UniProtKB-EC.
DR   GO; GO:0042952; P:beta-ketoadipate pathway; IEA:UniProtKB-UniPathway.
DR   InterPro; IPR011008; Dimeric_a/b-barrel.
DR   InterPro; IPR026029; MLI_dom.
DR   InterPro; IPR003464; Muconolactone_d_Isoase.
DR   Pfam; PF02426; MIase; 1.
DR   PIRSF; PIRSF001486; CatC; 1.
DR   SUPFAM; SSF54909; SSF54909; 1.
DR   TIGRFAMs; TIGR03221; muco_delta; 1.
PE   3: Inferred from homology;
KW   Aromatic hydrocarbons catabolism; Isomerase; Reference proteome.
FT   CHAIN           1..96
FT                   /note="Muconolactone Delta-isomerase"
FT                   /id="PRO_0000089333"
SQ   SEQUENCE   96 AA;  11287 MW;  E0F0B3D2D35C03C0 CRC64;
     MLFQVRMDVH LPVSMPTDQA NQIKSVEKAY SQELQRQGKW RHIWRITGQY SNISIFDVES
     NEELHTILQG LPLYPYMKIE VMALNRHPSS VRDDDS