ID   PER4_DAUCA              Reviewed;          15 AA.
AC   P86057;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-DEC-2008, sequence version 1.
DT   11-DEC-2019, entry version 16.
DE   RecName: Full=Peroxidase 4 {ECO:0000250|UniProtKB:P84714};
DE            EC=1.11.1.7;
DE   Flags: Fragment;
OS   Daucus carota (Wild carrot).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Apiales; Apiaceae; Apioideae; Scandiceae; Daucinae;
OC   Daucus; Daucus sect. Daucus.
OX   NCBI_TaxID=4039;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE.
RA   Gomez Ros L.V., Belchi-Navarro S., 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:0000255|PROSITE-
CC       ProRule:PRU00297}.
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         Evidence={ECO:0000250|UniProtKB:P84714,
CC         ECO:0000255|PROSITE-ProRule:PRU00297};
CC       Note=Binds 2 calcium ions per subunit. {ECO:0000250|UniProtKB:P84714,
CC       ECO:0000255|PROSITE-ProRule:PRU00297};
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000250|UniProtKB:P84714,
CC         ECO:0000255|PROSITE-ProRule:PRU00297};
CC       Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.
CC       {ECO:0000250|UniProtKB:P84714, 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   PRIDE; P86057; -.
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.
PE   1: Evidence at protein level;
KW   Calcium; Direct protein sequencing; Heme; Hydrogen peroxide; Iron;
KW   Metal-binding; Oxidoreductase; Peroxidase.
FT   CHAIN           <1..>15
FT                   /note="Peroxidase 4"
FT                   /id="PRO_0000355596"
FT   UNSURE          3
FT                   /note="L or I"
FT   UNSURE          4
FT                   /note="F or M"
FT   UNSURE          8
FT                   /note="Q or K"
FT   UNSURE          10
FT                   /note="L or I"
FT   NON_TER         1
FT   NON_TER         15
SQ   SEQUENCE   15 AA;  1746 MW;  D50725E33B778CB3 CRC64;
     ANLFTSDQDL YTDSR