ID   A0A1I4Q3D0_9PROT        Unreviewed;       485 AA.
AC   A0A1I4Q3D0;
DT   22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2017, sequence version 1.
DT   24-JAN-2024, entry version 19.
DE   RecName: Full=Catalase {ECO:0000256|ARBA:ARBA00014132, ECO:0000256|RuleBase:RU000498};
DE            EC=1.11.1.6 {ECO:0000256|RuleBase:RU000498};
GN   ORFNames=SAMN05421880_11384 {ECO:0000313|EMBL:SFM34366.1};
OS   Nitrosomonas nitrosa.
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC   Nitrosomonadaceae; Nitrosomonas.
OX   NCBI_TaxID=52442 {ECO:0000313|EMBL:SFM34366.1, ECO:0000313|Proteomes:UP000199561};
RN   [1] {ECO:0000313|EMBL:SFM34366.1, ECO:0000313|Proteomes:UP000199561}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Nm146 {ECO:0000313|EMBL:SFM34366.1,
RC   ECO:0000313|Proteomes:UP000199561};
RA   de Groot N.N.;
RL   Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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:0000256|ARBA:ARBA00000720,
CC         ECO:0000256|RuleBase:RU000498};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000256|PIRSR:PIRSR038928-2};
CC   -!- SIMILARITY: Belongs to the catalase family.
CC       {ECO:0000256|ARBA:ARBA00005329, ECO:0000256|RuleBase:RU000498}.
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DR   EMBL; FOUF01000013; SFM34366.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1I4Q3D0; -.
DR   STRING; 52442.SAMN05421880_11384; -.
DR   Proteomes; UP000199561; Unassembled WGS sequence.
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   Gene3D; 2.40.180.10; Catalase core domain; 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; CATALASE; 1.
DR   PANTHER; PTHR11465:SF61; CATALASE; 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; Heme-dependent catalase-like; 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 {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRSR:PIRSR038928-2};
KW   Hydrogen peroxide {ECO:0000256|ARBA:ARBA00023324,
KW   ECO:0000256|RuleBase:RU000498};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRSR:PIRSR038928-2};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW   ECO:0000256|PIRSR:PIRSR038928-2};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|RuleBase:RU000498};
KW   Peroxidase {ECO:0000256|ARBA:ARBA00022559, ECO:0000256|RuleBase:RU000498};
KW   Reference proteome {ECO:0000313|Proteomes:UP000199561}.
FT   DOMAIN          8..392
FT                   /note="Catalase core"
FT                   /evidence="ECO:0000259|SMART:SM01060"
FT   ACT_SITE        55
FT                   /evidence="ECO:0000256|PIRSR:PIRSR038928-1"
FT   ACT_SITE        128
FT                   /evidence="ECO:0000256|PIRSR:PIRSR038928-1"
FT   BINDING         338
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:0000256|PIRSR:PIRSR038928-2"
SQ   SEQUENCE   485 AA;  54845 MW;  5FC7AB97B2CC9CAB CRC64;
     MSDKKKLTTS VGCPVADNQN VMTAGPRGPM LLQDVWFLEK LAHFDREVIP ERRMHAKGSG
     AYGTFTVTHD ITRYTRAKIF SQVGKKTVLF VRFSTVAGER GAADAERDIR GFAVKFYTEE
     GNWDLVGNNT PVFFLRDPLK FPDLNHAVKR DPCTNLRSAK NNWDFWTLLP EALHQITIVM
     SDRGIPATYR HMHGFGSHTF SFLNAGNDRF WVKFHLKSMQ GIKNLTDTEA ETLIGKDRES
     HQRDLYAAIE RGDFPKWKLC IQIMPEEDAA KVAYNPFDLT KVWPHSEYPL IEVGILELNR
     NPANYFAEVE QAAFNPANIV PGIGFSPDKM LQGRLFSYGD AQRYRLGVNH HQIPVNQARC
     PVHSYHRDGA MRVDGNFGCA QGYEPNSLGE WQEQPSFAEP LLDLNGAADH WDHREDTDYY
     SQPGALFRLM TLSQQKALFE NTARSIGGIP REIQIRHIAN CLKADSAYGK GIAEALGIAL
     EDIKK
//