ID   AHPD_MYCA1              Reviewed;         178 AA.
AC   A0QGI9;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=Alkyl hydroperoxide reductase AhpD {ECO:0000255|HAMAP-Rule:MF_01676};
DE            EC=1.11.1.28 {ECO:0000255|HAMAP-Rule:MF_01676};
DE   AltName: Full=Alkylhydroperoxidase AhpD {ECO:0000255|HAMAP-Rule:MF_01676};
GN   Name=ahpD {ECO:0000255|HAMAP-Rule:MF_01676}; OrderedLocusNames=MAV_2840;
OS   Mycobacterium avium (strain 104).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium avium complex (MAC).
OX   NCBI_TaxID=243243;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=104;
RA   Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C.,
RA   Fraser C.M.;
RL   Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Antioxidant protein with alkyl hydroperoxidase activity.
CC       Required for the reduction of the AhpC active site cysteine residues
CC       and for the regeneration of the AhpC enzyme activity.
CC       {ECO:0000255|HAMAP-Rule:MF_01676}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(R)-N(6)-dihydrolipoyl-L-lysyl-[lipoyl-carrier protein] + a
CC         hydroperoxide = (R)-N(6)-lipoyl-L-lysyl-[lipoyl-carrier protein] + an
CC         alcohol + H2O; Xref=Rhea:RHEA:62636, Rhea:RHEA-COMP:10502, Rhea:RHEA-
CC         COMP:16355, ChEBI:CHEBI:15377, ChEBI:CHEBI:30879, ChEBI:CHEBI:35924,
CC         ChEBI:CHEBI:83099, ChEBI:CHEBI:83100; EC=1.11.1.28;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01676};
CC   -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_01676}.
CC   -!- SIMILARITY: Belongs to the AhpD family. {ECO:0000255|HAMAP-
CC       Rule:MF_01676}.
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DR   EMBL; CP000479; ABK67457.1; -; Genomic_DNA.
DR   RefSeq; WP_011725084.1; NC_008595.1.
DR   AlphaFoldDB; A0QGI9; -.
DR   SMR; A0QGI9; -.
DR   PeroxiBase; 4581; MavAhpD_104.
DR   EnsemblBacteria; ABK67457; ABK67457; MAV_2840.
DR   GeneID; 66694116; -.
DR   KEGG; mav:MAV_2840; -.
DR   HOGENOM; CLU_105328_0_0_11; -.
DR   OMA; AIMAMNN; -.
DR   OrthoDB; 1427837at2; -.
DR   Proteomes; UP000001574; Chromosome.
DR   GO; GO:0008785; F:alkyl hydroperoxide reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0032843; F:hydroperoxide reductase activity; IEA:InterPro.
DR   GO; GO:0004601; F:peroxidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0051920; F:peroxiredoxin activity; IEA:InterPro.
DR   GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR   Gene3D; 1.20.1290.10; -; 1.
DR   HAMAP; MF_01676; AhpD; 1.
DR   InterPro; IPR004674; AhpD.
DR   InterPro; IPR029032; AhpD-like.
DR   InterPro; IPR004675; AhpD_core.
DR   InterPro; IPR003779; CMD-like.
DR   Pfam; PF02627; CMD; 1.
DR   SUPFAM; SSF69118; SSF69118; 1.
DR   TIGRFAMs; TIGR00777; ahpD; 1.
DR   TIGRFAMs; TIGR00778; ahpD_dom; 1.
PE   3: Inferred from homology;
KW   Antioxidant; Disulfide bond; Oxidoreductase; Peroxidase;
KW   Redox-active center.
FT   CHAIN           1..178
FT                   /note="Alkyl hydroperoxide reductase AhpD"
FT                   /id="PRO_0000359496"
FT   ACT_SITE        130
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
FT   ACT_SITE        133
FT                   /note="Cysteine sulfenic acid (-SOH) intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
FT   DISULFID        130..133
FT                   /evidence="ECO:0000250"
FT   DISULFID        133
FT                   /note="Interchain (with AhpC); in linked form"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
SQ   SEQUENCE   178 AA;  18872 MW;  53913FDFE05AE9D3 CRC64;
     MSVENLKEAL PEYAKDLKLN LGSITRTTEL NEEQLWGTLL ASAAATRNTQ VLTEIGAEAA
     DTLSAEAYHA ALGAASVMAM NNVFYRGRGF LDGKYDDLRA GLRMNIIGNP GVEKANFELW
     CFAVSAINGC PDCVASHEHT LREAGVSRET IQEALKAAAI ISGVAQAIVT SQTLATAG