KATG2_LEGPA
ID KATG2_LEGPA Reviewed; 749 AA.
AC Q5X8J8;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-NOV-2004, sequence version 1.
DT 03-AUG-2022, entry version 100.
DE RecName: Full=Catalase-peroxidase 2 {ECO:0000255|HAMAP-Rule:MF_01961};
DE Short=CP 2 {ECO:0000255|HAMAP-Rule:MF_01961};
DE EC=1.11.1.21 {ECO:0000255|HAMAP-Rule:MF_01961};
DE AltName: Full=Peroxidase/catalase 2 {ECO:0000255|HAMAP-Rule:MF_01961};
DE Flags: Precursor;
GN Name=katG2 {ECO:0000255|HAMAP-Rule:MF_01961}; OrderedLocusNames=lpp0252;
OS Legionella pneumophila (strain Paris).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales;
OC Legionellaceae; Legionella.
OX NCBI_TaxID=297246;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Paris;
RX PubMed=15467720; DOI=10.1038/ng1447;
RA Cazalet C., Rusniok C., Brueggemann H., Zidane N., Magnier A., Ma L.,
RA Tichit M., Jarraud S., Bouchier C., Vandenesch F., Kunst F., Etienne J.,
RA Glaser P., Buchrieser C.;
RT "Evidence in the Legionella pneumophila genome for exploitation of host
RT cell functions and high genome plasticity.";
RL Nat. Genet. 36:1165-1173(2004).
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; CR628336; CAH11399.1; -; Genomic_DNA.
DR RefSeq; WP_011212879.1; NC_006368.1.
DR AlphaFoldDB; Q5X8J8; -.
DR SMR; Q5X8J8; -.
DR PeroxiBase; 2398; LpnCP01_Paris.
DR KEGG; lpp:lpp0252; -.
DR LegioList; lpp0252; -.
DR HOGENOM; CLU_025424_2_0_6; -.
DR OMA; EEIFWGP; -.
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;
KW Signal.
FT SIGNAL 1..27
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT CHAIN 28..749
FT /note="Catalase-peroxidase 2"
FT /id="PRO_0000354821"
FT ACT_SITE 108
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT BINDING 270
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 104
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT CROSSLNK 107..229
FT /note="Tryptophyl-tyrosyl-methioninium (Trp-Tyr) (with M-
FT 255)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
FT CROSSLNK 229..255
FT /note="Tryptophyl-tyrosyl-methioninium (Tyr-Met) (with W-
FT 107)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01961"
SQ SEQUENCE 749 AA; 82988 MW; 4665876E0BA2FE15 CRC64;
MFKRTIPLFA AFTLAISPSV FPNYAYAQED KPKTNQYWWP KMLDLSPLRQ PNATSNPMGE
QFNYAEEFNS LDLNAVIEDL KKLMTTSQDW WPADYGNYGP LFIRMSWHAA GTYRIYDGRG
GANGGFQRFA PQNSWPDNAN LDKARRLLWP IKQKYGRKIS WADLLVLAGN VAMESMGFKT
IGFAGGREDA WEAININWGP EGKWLESKRQ DKDGKLEKPL AATVMGLIYV NPEGPNGVPD
PLAAAEKIRE TFGRMAMNDE ETVALIAGGH AFGKTHGAAS GKYLGPAPEA AGIEEQGFGW
KNSYGSGKGK DTITSGLEGA WTVTPTHWSH NYLQNLFNFN WVKTKSPGGA IQWVPENSNA
SSMVPDAFDP SKRHAPVMLT TDLALKFDPV YSKIAKRFLD NPKEFDDAFA RAWFKLIHRD
MGPRSRYLGS LVPKEIMIWQ DPVPPVDYKL VDANDIANLK GKILNSGLST SELVKTAWAS
ASTFRGTDMR GGANGARIRL SPQKDWPAND PQELAKVLKT LESIQNNFNN AQADGKKISL
ADLIVLGGNA AIEQAAKQAG YDIIVPFMPG RTDATQGMTD VKSFEVLEPK ADGFRNYFDK
SNNMSPPEML VEKASLLKLS VPQMTVLVGG MRVLNANTGQ NQYGVFTDKP GTLNNDFFVN
LLSMSTEWKK SSETEGIYEG YDRKTGKLKW KATSVDLIFG ANSELRAVAE AYATDDAKEK
FIQDFVNAWV KVMTADRFDI KAANTNINS
