ID A0A0G3IJR6_9MYCO Unreviewed; 290 AA.
AC A0A0G3IJR6;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=Mycothiol S-conjugate amidase {ECO:0000256|HAMAP-Rule:MF_01482};
DE EC=3.5.1.115 {ECO:0000256|HAMAP-Rule:MF_01482};
GN Name=mca {ECO:0000256|HAMAP-Rule:MF_01482};
GN ORFNames=AB431_06285 {ECO:0000313|EMBL:AKK26362.1};
OS Mycobacterium sp. EPa45.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycobacterium.
OX NCBI_TaxID=1545728 {ECO:0000313|EMBL:AKK26362.1, ECO:0000313|Proteomes:UP000035237};
RN [1] {ECO:0000313|Proteomes:UP000035237}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EPa45 {ECO:0000313|Proteomes:UP000035237};
RA Kato H., Ogawa N., Ohtsubo Y., Ohshima K., Toyoda A., Yamazoe A., Mori H.,
RA Maruyama F., Nagata Y., Hattori M., Fujiyama A., Kurokawa K., Tsuda M.;
RT "Complete Genome Sequence of a Phenanthrene Degrader, Mycobacterium sp.
RT Strain EPa45, Isolated from a Phenanthrene-Degrading Consortium.";
RL Genome Announc.0:0-0(2015).
RN [2] {ECO:0000313|EMBL:AKK26362.1, ECO:0000313|Proteomes:UP000035237}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EPa45 {ECO:0000313|EMBL:AKK26362.1,
RC ECO:0000313|Proteomes:UP000035237};
RX PubMed=26184940;
RA Kato H., Ogawa N., Ohtsubo Y., Oshima K., Toyoda A., Mori H., Nagata Y.,
RA Kurokawa K., Hattori M., Fujiyama A., Tsuda M.;
RT "Complete Genome Sequence of a Phenanthrene Degrader, Mycobacterium sp.
RT Strain EPa45 (NBRC 110737), Isolated from a Phenanthrene-Degrading
RT Consortium.";
RL Genome Announc. 3:e00782-15(2015).
CC -!- FUNCTION: A mycothiol (MSH, N-acetylcysteinyl-glucosaminyl-inositol) S-
CC conjugate amidase, it recycles conjugated MSH to the N-acetyl cysteine
CC conjugate (AcCys S-conjugate, a mercapturic acid) and the MSH
CC precursor. Involved in MSH-dependent detoxification of a number of
CC alkylating agents and antibiotics. {ECO:0000256|HAMAP-Rule:MF_01482}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + mycothiol S-conjugate = 1D-myo-inositol 2-amino-2-deoxy-
CC alpha-D-glucopyranoside + an N-acetyl-L-cysteine-S-conjugate;
CC Xref=Rhea:RHEA:36543, ChEBI:CHEBI:15377, ChEBI:CHEBI:58718,
CC ChEBI:CHEBI:58886, ChEBI:CHEBI:59633; EC=3.5.1.115;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01482};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01482};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01482};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01482}.
CC -!- SIMILARITY: Belongs to the MshB deacetylase family. Mca subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_01482}.
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DR EMBL; CP011773; AKK26362.1; -; Genomic_DNA.
DR RefSeq; WP_047329204.1; NZ_CP011773.1.
DR AlphaFoldDB; A0A0G3IJR6; -.
DR STRING; 1545728.AB431_06285; -.
DR KEGG; mye:AB431_06285; -.
DR PATRIC; fig|1545728.4.peg.1274; -.
DR OrthoDB; 158614at2; -.
DR Proteomes; UP000035237; Chromosome.
DR GO; GO:0016787; F:hydrolase activity; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010126; P:mycothiol metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0010127; P:mycothiol-dependent detoxification; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.10320; LmbE-like; 1.
DR HAMAP; MF_01482; Mca; 1.
DR InterPro; IPR003737; GlcNAc_PI_deacetylase-related.
DR InterPro; IPR024078; LmbE-like_dom_sf.
DR InterPro; IPR017811; Mca.
DR NCBIfam; TIGR03446; mycothiol_Mca; 1.
DR PANTHER; PTHR12993:SF32; MYCOTHIOL S-CONJUGATE AMIDASE; 1.
DR PANTHER; PTHR12993; N-ACETYLGLUCOSAMINYL-PHOSPHATIDYLINOSITOL DE-N-ACETYLASE-RELATED; 1.
DR Pfam; PF02585; PIG-L; 1.
DR SUPFAM; SSF102588; LmbE-like; 1.
PE 3: Inferred from homology;
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01482};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01482};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_01482}.
FT BINDING 12
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01482"
FT BINDING 15
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01482"
FT BINDING 142
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01482"
SQ SEQUENCE 290 AA; 32762 MW; B59DA22BD635C04E CRC64;
MTELRLMAVH AHPDDESSKG AATLARYASE GHRVMVVTLT GGERGDILNP AMDLPEVRGR
IADIRRDEMA RAAEILGVEH KWLGFVDSGL PEGDPLPPLP DGCFALVPLE QPVGELVKLI
REFRPHVVTT YDENGGYPHP DHIRCHQVSV AAYEAAADHR LYPDAGEPWA VSKLYYNHGF
LRARLQLLQD EFAKHGQEGP FADWLKKWDP EIDIFSGRVT TRVLCSEYFN QRDEALKAHA
TQIDPGGFFF ATPIEWQQRL WPTEEFELAR SRVPVNLPED DLFTGIEIFE
//
