AHPC_BACSU
ID AHPC_BACSU Reviewed; 187 AA.
AC P80239; P53562;
DT 01-FEB-1995, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 2.
DT 03-AUG-2022, entry version 141.
DE RecName: Full=Alkyl hydroperoxide reductase C;
DE EC=1.11.1.26 {ECO:0000250|UniProtKB:P0A251};
DE AltName: Full=General stress protein 22;
DE AltName: Full=Peroxiredoxin;
DE AltName: Full=Thioredoxin peroxidase;
GN Name=ahpC; OrderedLocusNames=BSU40090;
OS Bacillus subtilis (strain 168).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX NCBI_TaxID=224308;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=168;
RX PubMed=9205843; DOI=10.1093/dnares/4.2.155;
RA Kasahara Y., Nakai S., Ogasawara N.;
RT "Sequence analysis of the 36-kb region between gntZ and trnY genes of
RT Bacillus subtilis genome.";
RL DNA Res. 4:155-159(1997).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=168;
RX PubMed=9384377; DOI=10.1038/36786;
RA Kunst F., Ogasawara N., Moszer I., Albertini A.M., Alloni G., Azevedo V.,
RA Bertero M.G., Bessieres P., Bolotin A., Borchert S., Borriss R.,
RA Boursier L., Brans A., Braun M., Brignell S.C., Bron S., Brouillet S.,
RA Bruschi C.V., Caldwell B., Capuano V., Carter N.M., Choi S.-K.,
RA Codani J.-J., Connerton I.F., Cummings N.J., Daniel R.A., Denizot F.,
RA Devine K.M., Duesterhoeft A., Ehrlich S.D., Emmerson P.T., Entian K.-D.,
RA Errington J., Fabret C., Ferrari E., Foulger D., Fritz C., Fujita M.,
RA Fujita Y., Fuma S., Galizzi A., Galleron N., Ghim S.-Y., Glaser P.,
RA Goffeau A., Golightly E.J., Grandi G., Guiseppi G., Guy B.J., Haga K.,
RA Haiech J., Harwood C.R., Henaut A., Hilbert H., Holsappel S., Hosono S.,
RA Hullo M.-F., Itaya M., Jones L.-M., Joris B., Karamata D., Kasahara Y.,
RA Klaerr-Blanchard M., Klein C., Kobayashi Y., Koetter P., Koningstein G.,
RA Krogh S., Kumano M., Kurita K., Lapidus A., Lardinois S., Lauber J.,
RA Lazarevic V., Lee S.-M., Levine A., Liu H., Masuda S., Mauel C.,
RA Medigue C., Medina N., Mellado R.P., Mizuno M., Moestl D., Nakai S.,
RA Noback M., Noone D., O'Reilly M., Ogawa K., Ogiwara A., Oudega B.,
RA Park S.-H., Parro V., Pohl T.M., Portetelle D., Porwollik S.,
RA Prescott A.M., Presecan E., Pujic P., Purnelle B., Rapoport G., Rey M.,
RA Reynolds S., Rieger M., Rivolta C., Rocha E., Roche B., Rose M., Sadaie Y.,
RA Sato T., Scanlan E., Schleich S., Schroeter R., Scoffone F., Sekiguchi J.,
RA Sekowska A., Seror S.J., Serror P., Shin B.-S., Soldo B., Sorokin A.,
RA Tacconi E., Takagi T., Takahashi H., Takemaru K., Takeuchi M.,
RA Tamakoshi A., Tanaka T., Terpstra P., Tognoni A., Tosato V., Uchiyama S.,
RA Vandenbol M., Vannier F., Vassarotti A., Viari A., Wambutt R., Wedler E.,
RA Wedler H., Weitzenegger T., Winters P., Wipat A., Yamamoto H., Yamane K.,
RA Yasumoto K., Yata K., Yoshida K., Yoshikawa H.-F., Zumstein E.,
RA Yoshikawa H., Danchin A.;
RT "The complete genome sequence of the Gram-positive bacterium Bacillus
RT subtilis.";
RL Nature 390:249-256(1997).
RN [3]
RP PROTEIN SEQUENCE OF 1-41.
RC STRAIN=168 / YB886 / BG214;
RX PubMed=8180695; DOI=10.1099/13500872-140-2-297;
RA Hartford O.M., Dowds B.C.A.;
RT "Isolation and characterization of a hydrogen peroxide resistant mutant of
RT Bacillus subtilis.";
RL Microbiology 140:297-304(1994).
RN [4]
RP PROTEIN SEQUENCE OF 1-14.
RC STRAIN=168 / IS58;
RX PubMed=8012595; DOI=10.1099/00221287-140-4-741;
RA Voelker U., Engelmann S., Maul B., Riethdorf S., Voelker A., Schmid R.,
RA Mach H., Hecker M.;
RT "Analysis of the induction of general stress proteins of Bacillus
RT subtilis.";
RL Microbiology 140:741-752(1994).
CC -!- FUNCTION: Thiol-specific peroxidase that catalyzes the reduction of
CC hydrogen peroxide and organic hydroperoxides to water and alcohols,
CC respectively. Plays a role in cell protection against oxidative stress
CC by detoxifying peroxides. {ECO:0000250|UniProtKB:P0A251}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a hydroperoxide + H(+) + NADH = an alcohol + H2O + NAD(+);
CC Xref=Rhea:RHEA:62628, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30879, ChEBI:CHEBI:35924, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945; EC=1.11.1.26;
CC Evidence={ECO:0000250|UniProtKB:P0A251};
CC -!- SUBUNIT: Homodimer; disulfide-linked, upon oxidation. 5 homodimers
CC assemble to form a ring-like decamer. {ECO:0000250|UniProtKB:P0A251}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P0AE08}.
CC -!- INDUCTION: By heat shock, salt stress, oxidative stress and glucose
CC limitation. {ECO:0000269|PubMed:8012595}.
CC -!- MISCELLANEOUS: The active site is a conserved redox-active cysteine
CC residue, the peroxidatic cysteine (C(P)), which makes the nucleophilic
CC attack on the peroxide substrate. The peroxide oxidizes the C(P)-SH to
CC cysteine sulfenic acid (C(P)-SOH), which then reacts with another
CC cysteine residue, the resolving cysteine (C(R)), to form a disulfide
CC bridge. The disulfide is subsequently reduced by an appropriate
CC electron donor to complete the catalytic cycle. In this typical 2-Cys
CC peroxiredoxin, C(R) is provided by the other dimeric subunit to form an
CC intersubunit disulfide. The disulfide is subsequently reduced by AhpF.
CC {ECO:0000250|UniProtKB:P0A251}.
CC -!- SIMILARITY: Belongs to the peroxiredoxin family. AhpC/Prx1 subfamily.
CC {ECO:0000305}.
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DR EMBL; D78193; BAA11268.1; -; Genomic_DNA.
DR EMBL; AL009126; CAB16046.1; -; Genomic_DNA.
DR PIR; F69583; F69583.
DR RefSeq; NP_391889.1; NC_000964.3.
DR RefSeq; WP_003243686.1; NZ_JNCM01000034.1.
DR AlphaFoldDB; P80239; -.
DR SMR; P80239; -.
DR IntAct; P80239; 1.
DR MINT; P80239; -.
DR STRING; 224308.BSU40090; -.
DR PeroxiBase; 4904; BsAhpC.
DR jPOST; P80239; -.
DR PaxDb; P80239; -.
DR PRIDE; P80239; -.
DR EnsemblBacteria; CAB16046; CAB16046; BSU_40090.
DR GeneID; 938147; -.
DR KEGG; bsu:BSU40090; -.
DR PATRIC; fig|224308.179.peg.4336; -.
DR eggNOG; COG0450; Bacteria.
DR InParanoid; P80239; -.
DR OMA; FWYPKDF; -.
DR PhylomeDB; P80239; -.
DR BioCyc; BSUB:BSU40090-MON; -.
DR Proteomes; UP000001570; Chromosome.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0102039; F:alkylhydroperoxide reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0004601; F:peroxidase activity; IEA:UniProtKB-KW.
DR GO; GO:0051920; F:peroxiredoxin activity; IEA:InterPro.
DR GO; GO:0045454; P:cell redox homeostasis; IBA:GO_Central.
DR GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR InterPro; IPR017559; AhpC.
DR InterPro; IPR000866; AhpC/TSA.
DR InterPro; IPR024706; Peroxiredoxin_AhpC-typ.
DR InterPro; IPR019479; Peroxiredoxin_C.
DR InterPro; IPR036249; Thioredoxin-like_sf.
DR InterPro; IPR013766; Thioredoxin_domain.
DR PANTHER; PTHR10681:SF121; PTHR10681:SF121; 1.
DR Pfam; PF10417; 1-cysPrx_C; 1.
DR Pfam; PF00578; AhpC-TSA; 1.
DR PIRSF; PIRSF000239; AHPC; 1.
DR SUPFAM; SSF52833; SSF52833; 1.
DR TIGRFAMs; TIGR03137; AhpC; 1.
DR PROSITE; PS51352; THIOREDOXIN_2; 1.
PE 1: Evidence at protein level;
KW Antioxidant; Cytoplasm; Direct protein sequencing; Disulfide bond;
KW Oxidoreductase; Peroxidase; Redox-active center; Reference proteome;
KW Stress response.
FT CHAIN 1..187
FT /note="Alkyl hydroperoxide reductase C"
FT /id="PRO_0000135113"
FT DOMAIN 2..157
FT /note="Thioredoxin"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00691"
FT ACT_SITE 47
FT /note="Cysteine sulfenic acid (-SOH) intermediate"
FT /evidence="ECO:0000250|UniProtKB:P0A251"
FT DISULFID 47
FT /note="Interchain (with C-166); in linked form"
FT /evidence="ECO:0000250|UniProtKB:P0A251"
FT DISULFID 166
FT /note="Interchain (with C-47); in linked form"
FT /evidence="ECO:0000250|UniProtKB:P0A251"
FT CONFLICT 2
FT /note="Missing (in Ref. 4; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 8
FT /note="V -> VV (in Ref. 4; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 187 AA; 20627 MW; 10DF6643BC90F54E CRC64;
MSLIGKEVLP FEAKAFKNGE FIDVTNEDLK GQWSVFCFYP ADFSFVCPTE LEDLQEQYAA
LKELGVEVYS VSTDTHFVHK GWHDSSEKIS KITYAMIGDP SQTISRNFDV LDEETGLADR
GTFIIDPDGV IQTVEINAGG IGRDASNLVN KVKAAQYVRQ NPGEVCPAKW EEGGETLTPS
LDLVGKI
