ID A0A1W2H2X9_9BACT Unreviewed; 738 AA.
AC A0A1W2H2X9;
DT 07-JUN-2017, integrated into UniProtKB/TrEMBL.
DT 07-JUN-2017, sequence version 1.
DT 24-JAN-2024, entry version 23.
DE RecName: Full=Catalase-peroxidase {ECO:0000256|HAMAP-Rule:MF_01961, ECO:0000256|RuleBase:RU003451};
DE Short=CP {ECO:0000256|HAMAP-Rule:MF_01961};
DE EC=1.11.1.21 {ECO:0000256|HAMAP-Rule:MF_01961, ECO:0000256|RuleBase:RU003451};
DE AltName: Full=Peroxidase/catalase {ECO:0000256|HAMAP-Rule:MF_01961};
GN Name=katG {ECO:0000256|HAMAP-Rule:MF_01961};
GN ORFNames=SAMN00777080_1563 {ECO:0000313|EMBL:SMD42992.1};
OS Aquiflexum balticum DSM 16537.
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Cyclobacteriaceae;
OC Aquiflexum.
OX NCBI_TaxID=758820 {ECO:0000313|EMBL:SMD42992.1, ECO:0000313|Proteomes:UP000192333};
RN [1] {ECO:0000313|EMBL:SMD42992.1, ECO:0000313|Proteomes:UP000192333}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16537 {ECO:0000313|EMBL:SMD42992.1,
RC ECO:0000313|Proteomes:UP000192333};
RA Afonso C.L., Miller P.J., Scott M.A., Spackman E., Goraichik I.,
RA Dimitrov K.M., Suarez D.L., Swayne D.E.;
RL Submitted (APR-2017) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Bifunctional enzyme with both catalase and broad-spectrum
CC peroxidase activity. {ECO:0000256|HAMAP-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:0000256|ARBA:ARBA00001378, ECO:0000256|HAMAP-
CC Rule:MF_01961, ECO:0000256|RuleBase:RU003451};
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:0000256|HAMAP-
CC Rule:MF_01961, ECO:0000256|RuleBase:RU003451};
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01961};
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per dimer.
CC {ECO:0000256|HAMAP-Rule:MF_01961};
CC -!- SUBUNIT: Homodimer or homotetramer. {ECO:0000256|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:0000256|HAMAP-Rule:MF_01961}.
CC -!- SIMILARITY: Belongs to the peroxidase family. Peroxidase/catalase
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_01961,
CC ECO:0000256|RuleBase:RU003451}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01961}.
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DR EMBL; LT838813; SMD42992.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1W2H2X9; -.
DR STRING; 758820.SAMN00777080_1563; -.
DR OrthoDB; 9759743at2; -.
DR Proteomes; UP000192333; Chromosome i.
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 CDD; cd00649; catalase_peroxidase_1; 1.
DR CDD; cd08200; catalase_peroxidase_2; 1.
DR Gene3D; 1.10.520.10; -; 2.
DR Gene3D; 1.10.420.10; Peroxidase, domain 2; 2.
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 NCBIfam; TIGR00198; cat_per_HPI; 1.
DR PANTHER; PTHR30555:SF0; CATALASE-PEROXIDASE; 1.
DR PANTHER; PTHR30555; HYDROPEROXIDASE I, BIFUNCTIONAL CATALASE-PEROXIDASE; 1.
DR Pfam; PF00141; peroxidase; 2.
DR PRINTS; PR00460; BPEROXIDASE.
DR PRINTS; PR00458; PEROXIDASE.
DR SUPFAM; SSF48113; Heme-dependent peroxidases; 2.
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 {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|HAMAP-Rule:MF_01961};
KW Hydrogen peroxide {ECO:0000256|ARBA:ARBA00023324, ECO:0000256|HAMAP-
KW Rule:MF_01961};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01961};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01961};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01961};
KW Peroxidase {ECO:0000256|ARBA:ARBA00022559, ECO:0000256|HAMAP-
KW Rule:MF_01961}; Reference proteome {ECO:0000313|Proteomes:UP000192333}.
FT DOMAIN 137..426
FT /note="Plant heme peroxidase family profile"
FT /evidence="ECO:0000259|PROSITE:PS50873"
FT ACT_SITE 104
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01961"
FT BINDING 268
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:0000256|HAMAP-Rule:MF_01961"
FT SITE 100
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01961"
FT CROSSLNK 227..253
FT /note="Tryptophyl-tyrosyl-methioninium (Tyr-Met) (with Trp-
FT 103)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01961"
SQ SEQUENCE 738 AA; 81766 MW; 426D09512C2A9E73 CRC64;
MDSYNMNEGD ISKCPFHNGQ LSQAAGAGPR NRDWWPNQLK LNILRQHSAL SNPMGEDFNY
AEEFKSLNLN EVKKDIAELL QTSQDWWPAD YGHYGPLMIR MAWHSAGTYR VQDGRGGGGF
GTQRFAPLNS WPDNANLDKA RFLLWPIKQK YGKKLSWADL MILTGNVALE TMGFETYGFA
GGRSDVWEPA EDVYWGSEGQ WMGDDKRYSG ERELEQPLGA SHMGLIYVNP EGPQGKPDPV
AAAHDIRETF GRMAMNDYET VALIAGGHTF GKTHGAADPT KYVGPEPEGA SIEEMGLGWK
NSFGSGIAEN TITSGLEGAW TSTPTKWGHD YFKFLFEYEW ELVKSPAGAF QYEAKNAEAI
IPDAHIPGKF HKPFMLTTDL SMRFDPEYEK VSRHFYENPD EFADAFAKAW FKLTHRDMGP
KSRYLGPEVP AEDLIWQDPI PAVDHALVDE KDIAGLKANI LASGLTVSEL VSTAWASAST
FRGSDKRGGA NGARIRLEPM KNWSANNPAQ LTKVLGTLES IQEEFNGTQS GNKKVSLADL
IVLGGCAAIE KAAKNAGLEI TVPFTPGRMD ASQEETEIDS FAFLEPKADG FRNYFNAKNM
ASAEEMLVDK AQLLNLTAPE MTVLVGGLRV LNANFDKSKH GVFTQNPETL SNDFFMNLLD
MGTTWRATSD AQNLFVGSDR VSGEPKWTAT RVDLIFGSNS ELRAISEVYG CADGKDKFVK
DFVAAWDKVM NLDRFDLV
//
