ID   CATA_STAAB              Reviewed;         505 AA.
AC   Q2YXT2;
DT   20-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 2.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=Catalase;
DE            EC=1.11.1.6;
GN   Name=katA; OrderedLocusNames=SAB1192;
OS   Staphylococcus aureus (strain bovine RF122 / ET3-1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=273036;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=bovine RF122 / ET3-1;
RX   PubMed=17971880; DOI=10.1371/journal.pone.0001120;
RA   Herron-Olson L., Fitzgerald J.R., Musser J.M., Kapur V.;
RT   "Molecular correlates of host specialization in Staphylococcus aureus.";
RL   PLoS ONE 2:E1120-E1120(2007).
CC   -!- FUNCTION: Decomposes hydrogen peroxide into water and oxygen; serves to
CC       protect cells from the toxic effects of hydrogen peroxide.
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 H2O2 = 2 H2O + O2; Xref=Rhea:RHEA:20309, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15379, ChEBI:CHEBI:16240; EC=1.11.1.6;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU10013};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the catalase family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAI80881.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AJ938182; CAI80881.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_000082539.1; NC_007622.1.
DR   AlphaFoldDB; Q2YXT2; -.
DR   SMR; Q2YXT2; -.
DR   KEGG; sab:SAB1192; -.
DR   HOGENOM; CLU_010645_2_0_9; -.
DR   GO; GO:0004096; F:catalase activity; IEA:UniProtKB-EC.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0042744; P:hydrogen peroxide catabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR   CDD; cd08156; catalase_clade_3; 1.
DR   InterPro; IPR018028; Catalase.
DR   InterPro; IPR040333; Catalase_3.
DR   InterPro; IPR024708; Catalase_AS.
DR   InterPro; IPR024711; Catalase_clade1/3.
DR   InterPro; IPR011614; Catalase_core.
DR   InterPro; IPR002226; Catalase_haem_BS.
DR   InterPro; IPR010582; Catalase_immune_responsive.
DR   InterPro; IPR020835; Catalase_sf.
DR   PANTHER; PTHR11465; PTHR11465; 1.
DR   Pfam; PF00199; Catalase; 1.
DR   Pfam; PF06628; Catalase-rel; 1.
DR   PIRSF; PIRSF038928; Catalase_clade1-3; 1.
DR   PRINTS; PR00067; CATALASE.
DR   SMART; SM01060; Catalase; 1.
DR   SUPFAM; SSF56634; SSF56634; 1.
DR   PROSITE; PS00437; CATALASE_1; 1.
DR   PROSITE; PS00438; CATALASE_2; 1.
DR   PROSITE; PS51402; CATALASE_3; 1.
PE   3: Inferred from homology;
KW   Heme; Hydrogen peroxide; Iron; Metal-binding; Oxidoreductase; Peroxidase.
FT   CHAIN           1..505
FT                   /note="Catalase"
FT                   /id="PRO_0000278272"
FT   REGION          1..25
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        56
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10013"
FT   ACT_SITE        129
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10013"
FT   BINDING         339
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   505 AA;  58380 MW;  F6A17136A32DCBCC CRC64;
     MSQQDKKLTG VFGHPVSDRE NSMTAGPRGP LLMQDIYFLE QMSQFDREVI PERRMHAKGS
     GAFGTFTVTK DITKYTNAKI FSEIGKQTEM FARFSTVAGE RGAADAERDI RGFALKFYTE
     EGNWDLVGNN TPVFFFRDPK LFVSLNRAVK RDPRTNMRDA QNNWDFWTGL PEALHQVTIL
     MSDRGIPKDL RHMHGFGSHT YSMYNDSGER VWVKFHFRTQ QGIENLTDEE AAEIIATDRD
     SSQRDLFEAI EKGDYPKWTM YIQVMTEEQA KNHKDNPFDL TKVWYHDEYP LIEVGEFELN
     RNPDNYFMDV EQAAFAPTNI IPGLDFSPDK MLQGRLFSYG DAQRYRLGVN HWQIPVNQPK
     GVGIENICPF SRDGQMRVVD NNQGGGTHYY PNNHGKFDSQ PEYKKPPFPT DGYGYEYNQR
     QDDDNYFEQP GKLFRLQSED AKERIFTNTA NAMEGVTDDV KRRHIRHCYK ADPEYGKGVA
     KALGIDINSI DLETENDETY ENFEK