ID   PER4_CAPAN              Reviewed;          15 AA.
AC   P86002;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 27.
DE   RecName: Full=Peroxidase 4 {ECO:0000250|UniProtKB:P22195};
DE            EC=1.11.1.7;
DE   Flags: Fragment;
OS   Capsicum annuum (Capsicum pepper).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Solanoideae; Capsiceae; Capsicum.
OX   NCBI_TaxID=4072;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE.
RA   Sabater Jara A.B., Almagro L., Pedreno M.A.;
RL   Submitted (JUL-2008) to UniProtKB.
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. {ECO:0000305}.
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=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000250|UniProtKB:P22195,
CC         ECO:0000255|PROSITE-ProRule:PRU00297};
CC       Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.
CC       {ECO:0000250|UniProtKB:P22195, ECO:0000255|PROSITE-ProRule:PRU00297};
CC   -!- COFACTOR:
CC       Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC         Evidence={ECO:0000250|UniProtKB:P22195,
CC         ECO:0000255|PROSITE-ProRule:PRU00297};
CC       Note=Binds 2 calcium ions per subunit. {ECO:0000250|UniProtKB:P22195,
CC       ECO:0000255|PROSITE-ProRule:PRU00297};
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250|UniProtKB:P84516,
CC       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   Proteomes; UP000189700; Genome assembly.
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   InterPro; IPR010255; Haem_peroxidase_sf.
DR   InterPro; IPR019793; Peroxidases_heam-ligand_BS.
DR   SUPFAM; SSF48113; SSF48113; 1.
DR   PROSITE; PS00435; PEROXIDASE_1; 1.
PE   1: Evidence at protein level;
KW   Calcium; Direct protein sequencing; Heme; Hydrogen peroxide; Iron;
KW   Metal-binding; Oxidoreductase; Peroxidase; Secreted.
FT   CHAIN           <1..>15
FT                   /note="Peroxidase 4"
FT                   /id="PRO_0000363731"
FT   BINDING         9
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000250|UniProtKB:P22195,
FT                   ECO:0000255|PROSITE-ProRule:PRU00297"
FT   BINDING         10
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P22195,
FT                   ECO:0000255|PROSITE-ProRule:PRU00297"
FT   UNSURE          2
FT                   /note="M or F"
FT   UNSURE          5
FT                   /note="L or I"
FT   UNSURE          11
FT                   /note="I or L"
FT   UNSURE          13
FT                   /note="Q or K"
FT   NON_TER         1
FT   NON_TER         15
SQ   SEQUENCE   15 AA;  1557 MW;  8CD047F43790CDE4 CRC64;
     EMVALSGSHT IGQAR