PER2_ARMRU
ID PER2_ARMRU Reviewed; 347 AA.
AC P17179;
DT 01-AUG-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1990, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Peroxidase C2;
DE EC=1.11.1.7;
DE Flags: Precursor;
GN Name=PRXC2;
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=2373366; DOI=10.1016/0378-1119(90)90002-9;
RA Fujiyama K., Takemura H., Shinmyo A., Okada H., Takano M.;
RT "Genomic DNA structure of two new horseradish-peroxidase-encoding genes.";
RL Gene 89:163-169(1990).
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; D90115; BAA14143.1; -; Genomic_DNA.
DR PIR; JH0149; JH0149.
DR AlphaFoldDB; P17179; -.
DR SMR; P17179; -.
DR PeroxiBase; 57; AruPrx02.
DR SABIO-RK; P17179; -.
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..24
FT CHAIN 25..347
FT /note="Peroxidase C2"
FT /id="PRO_0000023743"
FT ACT_SITE 66
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297,
FT ECO:0000255|PROSITE-ProRule:PRU10012"
FT BINDING 67
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 70
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 72
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 163
FT /ligand="substrate"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 194
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 195
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 246
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 249
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 254
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT SITE 62
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT CARBOHYD 81
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 210
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 238
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT DISULFID 35..115
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 68..73
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 121..325
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 201..233
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
SQ SEQUENCE 347 AA; 38035 MW; 3EE9A2CFDECBA49A CRC64;
MHSSSSLIKL GFLLLLLNVS LSHAQLSPSF YDKTCPQVFD IATNTIKTAL RSDPRIAASI
LRLHFHDCFV NGCDASILLD NTTSFRTEKD AFGNARSARG FDVIDTMKAA VEKACPKTVS
CADLLAIAAQ KSVVLAGGPS WKVPSGRRDS LRGFMDLAND NLPGPSSTLQ VLKDKFRNVG
LDRPSDLVAL SGGHTFGKNQ CQFIMDRLYN FSNSGKPDPT LDKSYLSTLR KQCPRNGNLS
VLVDFDLRTP TIFDNKYYVN LKENKGLIQS DQELFSSPDA SDTIPLVRAY ADGQGKFFDA
FVEAMIRMGN LSPSTGKQGE IRLNCRVVNS KPKIMDVVDT NDFASSI
