PER1B_ARMRU
ID PER1B_ARMRU Reviewed; 351 AA.
AC P15232;
DT 01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-APR-1990, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Peroxidase C1B;
DE EC=1.11.1.7;
DE Flags: Precursor;
GN Name=PRXC1B; Synonyms=HRPC2;
OS Armoracia rusticana (Horseradish) (Armoracia laphatifolia).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Cardamineae; Armoracia.
OX NCBI_TaxID=3704;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=3371352; DOI=10.1111/j.1432-1033.1988.tb14052.x;
RA Fujiyama K., Takemura H., Shibayama S., Kobayashi K., Choi J.K.,
RA Shinmyo A., Takano M., Yamada Y., Okada H.;
RT "Structure of the horseradish peroxidase isozyme C genes.";
RL Eur. J. Biochem. 173:681-687(1988).
CC -!- FUNCTION: Removal of H(2)O(2), oxidation of toxic reductants,
CC biosynthesis and degradation of lignin, suberization, auxin catabolism,
CC response to environmental stresses such as wounding, pathogen attack
CC and oxidative stress. These functions might be dependent on each
CC isozyme/isoform in each plant tissue.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 a phenolic donor + H2O2 = 2 a phenolic radical donor + 2
CC H2O; Xref=Rhea:RHEA:56136, ChEBI:CHEBI:15377, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:139520, ChEBI:CHEBI:139521; EC=1.11.1.7;
CC -!- COFACTOR:
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Note=Binds 2 calcium ions per subunit.;
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.;
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305}. Vacuole {ECO:0000305}.
CC Note=Carboxy-terminal extension appears to target the protein to
CC vacuoles.
CC -!- SIMILARITY: Belongs to the peroxidase family. Classical plant (class
CC III) peroxidase subfamily. {ECO:0000255|PROSITE-ProRule:PRU00297}.
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DR EMBL; M37157; AAA33378.1; -; Genomic_DNA.
DR PIR; S00626; S00626.
DR AlphaFoldDB; P15232; -.
DR SMR; P15232; -.
DR PeroxiBase; 89; AruPrx01-2.
DR PRIDE; P15232; -.
DR SABIO-RK; P15232; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0005773; C:vacuole; IEA:UniProtKB-SubCell.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004601; F:peroxidase activity; 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; cd00693; secretory_peroxidase; 1.
DR InterPro; IPR002016; Haem_peroxidase.
DR InterPro; IPR010255; Haem_peroxidase_sf.
DR InterPro; IPR000823; Peroxidase_pln.
DR InterPro; IPR019794; Peroxidases_AS.
DR InterPro; IPR019793; Peroxidases_heam-ligand_BS.
DR InterPro; IPR033905; Secretory_peroxidase.
DR PANTHER; PTHR31388; PTHR31388; 1.
DR Pfam; PF00141; peroxidase; 1.
DR PRINTS; PR00458; PEROXIDASE.
DR PRINTS; PR00461; PLPEROXIDASE.
DR SUPFAM; SSF48113; SSF48113; 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 Calcium; Disulfide bond; Glycoprotein; Heme; Hydrogen peroxide; Iron;
KW Metal-binding; Oxidoreductase; Peroxidase; Secreted; Signal; Vacuole.
FT SIGNAL 1..28
FT CHAIN 29..351
FT /note="Peroxidase C1B"
FT /id="PRO_0000023741"
FT ACT_SITE 70
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297,
FT ECO:0000255|PROSITE-ProRule:PRU10012"
FT BINDING 71
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 74
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 76
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 78
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 80
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 198
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|PROSITE-ProRule:PRU00297"
FT BINDING 199
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 250
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 253
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 258
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT SITE 66
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT CARBOHYD 41
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 85
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 214
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 226
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 242
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 283
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT DISULFID 39..119
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 72..77
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 125..329
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 205..237
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
SQ SEQUENCE 351 AA; 38646 MW; 7A8C606A3928950B CRC64;
MHSPSSTSFT WILITLGCLA FYASLSDAQL TPTFYDTSCP NVSNIVRDII INELRSDPRI
TASILRLHFH DCFVNGCDAS ILLDNTTSFL TEKDALGNAN SARGFPTVDR IKAAVERACP
RTVSCADVLT IAAQQSVNLA GGPSWRVPLG RRDSLQAFLD LANANLPAPF FTLPQLKDAF
AKVGLDRPSD LVALSGGHTF GKNQCRFIMD RLYNFSNTGL PDPTLNTTYL QTLRQQCPLN
GNQSVLVDFD LRTPTVFDNK YYVNLKEQKG LIQSDQELFS SPNATDTIPL VRSFADGTQK
FFNAFVEAMN RMGNITPLTG TQGEIRLNCR VVNSNSLLHD IVEVVDFVSS M
