ID TYRO_FELCA Reviewed; 80 AA. AC P55033; DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot. DT 01-OCT-1996, sequence version 1. DT 03-MAR-2009, entry version 53. DE RecName: Full=Tyrosinase; DE EC=1.14.18.1; DE AltName: Full=Monophenol monooxygenase; DE Flags: Fragment; GN Name=TYR; OS Felis silvestris catus (Cat). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Mammalia; Eutheria; Laurasiatheria; Carnivora; Feliformia; Felidae; OC Felinae; Felis. OX NCBI_TaxID=9685; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA]. RC STRAIN=European shorthair; TISSUE=Melanoma; RX MEDLINE=97294870; PubMed=9150543; RA van der Linde-Sipman J.S., de Wit M.M., van Garderen E., RA Molenbeek R.F., van der Velde-Zimmermann D., de Weger R.A.; RT "Cutaneous malignant melanomas in 57 cats: identification of RT (amelanotic) signet-ring and balloon cell types and verification of RT their origin by immunohistochemistry, electron microscopy, and in situ RT hybridization."; RL Vet. Pathol. 34:31-38(1997). CC -!- FUNCTION: This is a copper-containing oxidase that functions in CC the formation of pigments such as melanins and other polyphenolic CC compounds. Catalyzes the rate-limiting conversions of tyrosine to CC DOPA, DOPA to DOPA-quinone and possibly 5,6-dihydroxyindole to CC indole-5,6 quinone. CC -!- CATALYTIC ACTIVITY: L-tyrosine + L-dopa + O(2) = L-dopa + CC dopaquinone + H(2)O. CC -!- COFACTOR: Binds 2 copper ions per subunit. CC -!- SUBCELLULAR LOCATION: Melanosome membrane; Single-pass type I CC membrane protein. CC -!- SIMILARITY: Belongs to the tyrosinase family. CC -!- WEB RESOURCE: Name=Protein Spotlight; Note=Snowy stardom - Issue CC 49 of August 2004; CC URL="http://www.expasy.org/spotlight/back_issues/sptlt049.shtml"; CC ----------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution-NoDerivs License CC ----------------------------------------------------------------------- DR EMBL; U40716; AAB08729.1; -; mRNA. DR HOVERGEN; P55033; -. DR BRENDA; 1.14.18.1; 273949. DR GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW. DR GO; GO:0033162; C:melanosome membrane; IEA:UniProtKB-SubCell. DR GO; GO:0005507; F:copper ion binding; IEA:UniProtKB-KW. DR GO; GO:0004503; F:monophenol monooxygenase activity; IEA:EC. DR GO; GO:0006583; P:melanin biosynthetic process from tyrosine; IEA:UniProtKB-KW. DR GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW. DR InterPro; IPR002227; Tyrosinase. DR PROSITE; PS00497; TYROSINASE_1; PARTIAL. DR PROSITE; PS00498; TYROSINASE_2; PARTIAL. PE 3: Inferred from homology; KW Copper; Glycoprotein; Melanin biosynthesis; Membrane; Monooxygenase; KW Oxidoreductase; Transmembrane. FT CHAIN <1 >80 Tyrosinase. FT /FTId=PRO_0000186729. FT CARBOHYD 59 59 N-linked (GlcNAc...) (Potential). FT NON_TER 1 1 FT NON_TER 80 80 SQ SEQUENCE 80 AA; 8694 MW; 926D7C99D49B74D3 CRC64; LEEYNSRQAL CDGTPEGPLL RNPGNHDKAR TPRLPSSADV EFCLSLTQYE SDSMDKAANF SFRNTLEGFA SPLTGIADAS //