PER2_ARAHY
ID PER2_ARAHY Reviewed; 330 AA.
AC P22196;
DT 01-AUG-1991, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1991, sequence version 1.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=Cationic peroxidase 2;
DE EC=1.11.1.7;
DE AltName: Full=PNPC2;
DE Flags: Precursor;
GN Name=PNC2;
OS Arachis hypogaea (Peanut).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC dalbergioids sensu lato; Dalbergieae; Pterocarpus clade; Arachis.
OX NCBI_TaxID=3818;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RX PubMed=2247460; DOI=10.1073/pnas.87.22.8874;
RA Buffard D., Breda C., van Huystee R.B., Asemota O., Pierre M.,
RA Dang Ha D.B., Esnault R.;
RT "Molecular cloning of complementary DNAs encoding two cationic peroxidases
RT from cultivated peanut cells.";
RL Proc. Natl. Acad. Sci. U.S.A. 87:8874-8878(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:0000255|PROSITE-ProRule:PRU00297}.
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; M37637; AAA32676.1; -; mRNA.
DR PIR; B38265; B38265.
DR AlphaFoldDB; P22196; -.
DR SMR; P22196; -.
DR PeroxiBase; 103; AhPrx05.
DR GO; GO:0005576; C:extracellular region; 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; PTHR31235; PTHR31235; 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 2: Evidence at transcript level;
KW Calcium; Disulfide bond; Glycoprotein; Heme; Hydrogen peroxide; Iron;
KW Metal-binding; Oxidoreductase; Peroxidase; Secreted; Signal.
FT SIGNAL 1..23
FT /evidence="ECO:0000255"
FT CHAIN 24..330
FT /note="Cationic peroxidase 2"
FT /id="PRO_0000023747"
FT REGION 149..168
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 72
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297,
FT ECO:0000255|PROSITE-ProRule:PRU10012"
FT BINDING 73
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 82
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT BINDING 164
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 68
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT CARBOHYD 212
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT DISULFID 41..117
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 74..79
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 123..326
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT DISULFID 201..233
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
SQ SEQUENCE 330 AA; 35556 MW; A751978FDD9B63D2 CRC64;
MEGVFNNKKF ILVFVFMLGL CIGITTVHGQ GTRVGFYSRT CPRAESIVRS TVRSHVNSDP
TLAAKILRMH FHDCFVQGCD GSILISGPAT EKTAFANLGL RGYEIIDDAK TQLEAACPGV
VSCADILALA ARDSVVLSGG LSWQVPTGRR DGRVSQASDV SNLPAPSDSV DVQKQKFAAK
GLNTQDLVTL VGGHTIGTSE CQFFSNRLFN FNGTAAADPA IDPSFVSNLQ ALCPQNTGAA
NRVALDTGSQ FKFDTSYFSN LRNRRGVLQS DQALWNDPST KSFVQRYLGL RGFLGLTFNV
EFGKSMVKMS NIGVKTGTDG EIRKICSAFN
