ID   Q9ZQU8      PRELIMINARY;      PRT;   205 AA.
AC   Q9ZQU8;
DT   01-MAY-1999 (TrEMBLrel. 10, Created)
DT   01-MAY-1999 (TrEMBLrel. 10, Last sequence update)
DT   01-OCT-2003 (TrEMBLrel. 25, Last annotation update)
DE   Polyphenol oxidase (EC 1.10.3.1) (Fragment).
OS   Pseudocydonia sinensis.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliophyta; eudicotyledons; core eudicots; rosids;
OC   eurosids I; Rosales; Rosaceae; Maloideae; Pseudocydonia.
OX   NCBI_TaxID=36622;
RN   [1]
RP   NUCLEOTIDE SEQUENCE.
RX   MEDLINE=99313775; PubMed=10385997; DOI=10.1016/S0031-9422(98)00633-5;
RA   Haruta M., Murata M., Kadokura H., Homma S.;
RT   "Immunological and molecular comparison of polyphenol oxidase in
RT   Rosaceae fruit trees.";
RL   Phytochemistry 50:1021-1025(1999).
CC   -!- FUNCTION: Catalyzes the oxidation of mono- and o-diphenols to o-
CC       diquinones (By similarity).
CC   -!- CATALYTIC ACTIVITY: 2 catechol + O(2) = 2 1,2-benzoquinone + 2
CC       H(2)O.
CC   -!- SUBCELLULAR LOCATION: Chloroplast; within the thylakoid lumen (By
CC       similarity).
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DR   EMBL; AB011831; BAA75625.1; -.
DR   HSSP; Q9ZP19; 1BT3.
DR   GO; GO:0004097; F:catechol oxidase activity; IEA.
DR   GO; GO:0016491; F:oxidoreductase activity; IEA.
DR   GO; GO:0008152; P:metabolism; IEA.
DR   InterPro; IPR002227; Tyrosinase.
DR   Pfam; PF00264; Tyrosinase; 1.
DR   PRINTS; PR00092; TYROSINASE.
DR   PROSITE; PS00497; TYROSINASE_1; 1.
DR   PROSITE; PS00498; TYROSINASE_2; 1.
KW   Chloroplast; Oxidoreductase.
FT   NON_TER       1      1
FT   NON_TER     205    205
SQ   SEQUENCE   205 AA;  23453 MW;  926C0AB01A47B324 CRC64;
     CDGAYDQAGF PELELQVHNS WFFFPFHRYY LYFFEKILGK LINDPTFAMP FWNWDSPPGM
     PLPAIYADPK SPLYDKFRSA KHQPPTLVDL DYNGTEDNVS NETTINANLK IMYRQMVSNS
     KNAQLFFGNP YRAGDEPDPG GGSIEGTPHG PVHLWTGDNT QPNFEDMGNF YSAGRDPVFY
     AHHSNVDRMW SIWKTLGGKR NDLLT
//