ID   AHPD_KORVE              Reviewed;         194 AA.
AC   Q1IJ49;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 83.
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};
GN   OrderedLocusNames=Acid345_4101;
OS   Koribacter versatilis (strain Ellin345).
OC   Bacteria; Acidobacteria; Acidobacteriales; Acidobacteriaceae;
OC   Candidatus Koribacter.
OX   NCBI_TaxID=204669;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ellin345;
RX   PubMed=19201974; DOI=10.1128/aem.02294-08;
RA   Ward N.L., Challacombe J.F., Janssen P.H., Henrissat B., Coutinho P.M.,
RA   Wu M., Xie G., Haft D.H., Sait M., Badger J., Barabote R.D., Bradley B.,
RA   Brettin T.S., Brinkac L.M., Bruce D., Creasy T., Daugherty S.C.,
RA   Davidsen T.M., DeBoy R.T., Detter J.C., Dodson R.J., Durkin A.S.,
RA   Ganapathy A., Gwinn-Giglio M., Han C.S., Khouri H., Kiss H., Kothari S.P.,
RA   Madupu R., Nelson K.E., Nelson W.C., Paulsen I., Penn K., Ren Q.,
RA   Rosovitz M.J., Selengut J.D., Shrivastava S., Sullivan S.A., Tapia R.,
RA   Thompson L.S., Watkins K.L., Yang Q., Yu C., Zafar N., Zhou L., Kuske C.R.;
RT   "Three genomes from the phylum Acidobacteria provide insight into the
RT   lifestyles of these microorganisms in soils.";
RL   Appl. Environ. Microbiol. 75:2046-2056(2009).
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   -!- SIMILARITY: Belongs to the AhpD family. {ECO:0000255|HAMAP-
CC       Rule:MF_01676}.
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DR   EMBL; CP000360; ABF43101.1; -; Genomic_DNA.
DR   RefSeq; WP_011524900.1; NC_008009.1.
DR   AlphaFoldDB; Q1IJ49; -.
DR   SMR; Q1IJ49; -.
DR   STRING; 204669.Acid345_4101; -.
DR   PeroxiBase; 4636; AbacAhpD.
DR   EnsemblBacteria; ABF43101; ABF43101; Acid345_4101.
DR   KEGG; aba:Acid345_4101; -.
DR   eggNOG; COG2128; Bacteria.
DR   HOGENOM; CLU_105328_0_0_0; -.
DR   OMA; AIMAMNN; -.
DR   OrthoDB; 1427837at2; -.
DR   Proteomes; UP000002432; 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; Reference proteome.
FT   CHAIN           1..194
FT                   /note="Alkyl hydroperoxide reductase AhpD"
FT                   /id="PRO_0000359467"
FT   ACT_SITE        132
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
FT   ACT_SITE        135
FT                   /note="Cysteine sulfenic acid (-SOH) intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
FT   DISULFID        132..135
FT                   /evidence="ECO:0000250"
FT   DISULFID        135
FT                   /note="Interchain (with AhpC); in linked form"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01676"
SQ   SEQUENCE   194 AA;  21187 MW;  05B71AF3B0362DBF CRC64;
     MNLEALLDTV PAYARDLKLN FSAVVRQNTE LTEQQLWGTV VACAAASRNR TLLDAIVEEA
     KGKLSAQAVE AAKGAAAILS MNNIFYRFQH LAVNKKYETM RAGLRMNFLR QHGVDPLDFE
     LWALAVSAVN GCGKCIDAHE RVLLQKEFSE EKILAAIRVA STIYGLAVVF DAEEPKGDLV
     GAPVNTDAYS TTTI