KATG_CAUSK
ID KATG_CAUSK Reviewed; 737 AA.
AC B0SX45;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 75.
DE RecName: Full=Catalase-peroxidase {ECO:0000255|HAMAP-Rule:MF_01961};
DE Short=CP {ECO:0000255|HAMAP-Rule:MF_01961};
DE EC=1.11.1.21 {ECO:0000255|HAMAP-Rule:MF_01961};
DE AltName: Full=Peroxidase/catalase {ECO:0000255|HAMAP-Rule:MF_01961};
GN Name=katG {ECO:0000255|HAMAP-Rule:MF_01961}; OrderedLocusNames=Caul_1076;
OS Caulobacter sp. (strain K31).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Caulobacter; unclassified Caulobacter.
OX NCBI_TaxID=366602;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K31;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Bruce D., Goodwin L., Thompson L.S., Brettin T.,
RA Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Kim E., Stephens C., Richardson P.;
RT "Complete sequence of chromosome of Caulobacter sp. K31.";
RL Submitted (JAN-2008) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Bifunctional enzyme with both catalase and broad-spectrum
CC peroxidase activity. {ECO:0000255|HAMAP-Rule:MF_01961}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=AH2 + H2O2 = A + 2 H2O; Xref=Rhea:RHEA:30275,
CC ChEBI:CHEBI:13193, ChEBI:CHEBI:15377, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:17499; EC=1.11.1.21; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01961};
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=1.11.1.21;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01961};
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01961};
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per dimer.
CC {ECO:0000255|HAMAP-Rule:MF_01961};
CC -!- SUBUNIT: Homodimer or homotetramer. {ECO:0000255|HAMAP-Rule:MF_01961}.
CC -!- PTM: Formation of the three residue Trp-Tyr-Met cross-link is important
CC for the catalase, but not the peroxidase activity of the enzyme.
CC {ECO:0000255|HAMAP-Rule:MF_01961}.
CC -!- SIMILARITY: Belongs to the peroxidase family. Peroxidase/catalase
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01961}.
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DR EMBL; CP000927; ABZ70206.1; -; Genomic_DNA.
DR RefSeq; WP_012285138.1; NC_010338.1.
DR AlphaFoldDB; B0SX45; -.
DR SMR; B0SX45; -.
DR STRING; 366602.Caul_1076; -.
DR EnsemblBacteria; ABZ70206; ABZ70206; Caul_1076.
DR KEGG; cak:Caul_1076; -.
DR eggNOG; COG0376; Bacteria.
DR HOGENOM; CLU_025424_2_0_5; -.
DR OMA; KWTATRM; -.
DR OrthoDB; 49441at2; -.
DR GO; GO:0004096; F:catalase activity; IEA:UniProtKB-UniRule.
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 HAMAP; MF_01961; Catal_peroxid; 1.
DR InterPro; IPR000763; Catalase_peroxidase.
DR InterPro; IPR002016; Haem_peroxidase.
DR InterPro; IPR010255; Haem_peroxidase_sf.
DR InterPro; IPR019794; Peroxidases_AS.
DR InterPro; IPR019793; Peroxidases_heam-ligand_BS.
DR PANTHER; PTHR30555; PTHR30555; 1.
DR Pfam; PF00141; peroxidase; 2.
DR PRINTS; PR00460; BPEROXIDASE.
DR PRINTS; PR00458; PEROXIDASE.
DR SUPFAM; SSF48113; SSF48113; 2.
DR TIGRFAMs; TIGR00198; cat_per_HPI; 1.
DR PROSITE; PS00435; PEROXIDASE_1; 1.
DR PROSITE; PS00436; PEROXIDASE_2; 1.
DR PROSITE; PS50873; PEROXIDASE_4; 1.
PE 3: Inferred from homology;
KW Heme; Hydrogen peroxide; Iron; Metal-binding; Oxidoreductase; Peroxidase.
FT CHAIN 1..737
FT /note="Catalase-peroxidase"
FT /id="PRO_0000354754"
FT ACT_SITE 103
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT BINDING 266
FT /ligand="heme b"
FT /ligand_id="ChEBI:CHEBI:60344"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT SITE 99
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT CROSSLNK 102..225
FT /note="Tryptophyl-tyrosyl-methioninium (Trp-Tyr) (with M-
FT 251)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT CROSSLNK 225..251
FT /note="Tryptophyl-tyrosyl-methioninium (Tyr-Met) (with W-
FT 102)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
SQ SEQUENCE 737 AA; 80080 MW; 4DEB2F28BBDB11E0 CRC64;
MDGSELVEPT TKCPLKHGVR FHTSFGGRSN RDWWPNQLNL KILHQHAPAS NPMPAGFSYA
EQVETLDVEA LKRDLAALMT DSQDWWPADY GHYGPLFVRM AWHSAGTYRT GDGRGGAGGG
QQRFAPLNSW PDNGNLDKAR RLIWPIKQKY GARISWADLM ILAADVGMET MGFKTFGFGF
GREDTWEPEE DVHWGAEDTW LGDARYTGER ELDKPLGAVQ MGLIYVNPEG PNGKPDPLAA
AHDIRETFAR MAMNDEETVA LIAGGHTFGK AHGAGDAAHV GVEPEAAGIA LQGLGWKNSF
GSGVGSDAIT SGLEGPWTPN PIKWDNGFFD TLFGHEWELT KSPAGAFQWT PKDPEAGPKA
PDAHDPSRQV APMMLTTDLA LRLDPNYGPI SKRFHENPDQ FQDAFARAWF KLTHRDMGPK
ARYLGPLVPQ EELLWQDPLP EPQGPPIDAN DIRELKAKVL ATGLSVPQLV ATAWASASTF
RGSDKRGGAN GARIRLSPQK DWAVNQPAQL ANVLATLEGV QSAFNGGQTD GKTVSLADLI
VLAGCAAVEQ AAKAAGHDVE VPFTPGRVDA SQNQTDVASF GVLEPKADGF RNYLNTDLPL
TAEELLVDKA QLLTLSAPEM TVLVGGLRAL NANTDQSSHG VFTTRPGSLT NDFFVNLLDM
RTVWTATSED EAQFEGRDRT TGDLKWTATR VDLIFGSNSQ LRALAEVFAQ SDSQGAFVGA
FVAAWTKVMN LDRFDLA
