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The enzyme tyrosine phenol-lyase (EC 4.1.99.2) catalyzes the chemical reaction L -tyrosine + H 2 O ⇌ {\displaystyle \rightleftharpoons } phenol + pyruvate + NH 3 This enzyme belongs to the family of lyases , specifically in the "catch-all" class of carbon-carbon lyases.
Tyrosine ammonia lyase (TAL) is an enzyme in the natural phenols biosynthesis pathway. It transforms L-tyrosine into p-coumaric acid. Tyrosine is also the precursor to the pigment melanin. Tyrosine (or its precursor phenylalanine) is needed to synthesize the benzoquinone structure which forms part of coenzyme Q10. [23] [24]
22173 Ensembl ENSG00000077498 ENSMUSG00000004651 UniProt P14679 P11344 RefSeq (mRNA) NM_000372 NM_011661 NM_001317397 RefSeq (protein) NP_000363 NP_001304326 NP_035791 Location (UCSC) Chr 11: 89.18 – 89.3 Mb Chr 7: 87.07 – 87.14 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Tyrosinase is an oxidase that is the rate-limiting enzyme for controlling the production of melanin. The ...
In biochemistry, a lyase is an enzyme that catalyzes the breaking (an elimination reaction) of various chemical bonds by means other than hydrolysis (a substitution reaction) and oxidation, often forming a new double bond or a new ring structure. [1] The reverse reaction is also possible (called a Michael reaction). For example, an enzyme that ...
Tyrosine hydroxylase or tyrosine 3-monooxygenase is the enzyme responsible for catalyzing the conversion of the amino acid L-tyrosine to L-3,4-dihydroxyphenylalanine (L-DOPA). [ 5 ] [ 6 ] It does so using molecular oxygen (O 2 ), as well as iron (Fe 2+ ) and tetrahydrobiopterin as cofactors .
Phenylalanine/tyrosine ammonia-lyase (EC 4.3.1.25, PTAL, bifunctional PAL) is an enzyme with systematic name L-phenylalanine ...
6898 234724 Ensembl ENSG00000198650 ENSMUSG00000001670 UniProt P17735 Q8QZR1 RefSeq (mRNA) NM_000353 NM_146214 RefSeq (protein) NP_000344 NP_666326 Location (UCSC) Chr 16: 71.57 – 71.58 Mb Chr 8: 110.72 – 110.73 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Tyrosine aminotransferase (or tyrosine transaminase) is an enzyme present in the liver and catalyzes the conversion of ...
The enzyme phenylalanine ammonia lyase (EC 4.3.1.24) catalyzes the conversion of L-phenylalanine to ammonia and trans-cinnamic acid.: [1] L -phenylalanine = trans -cinnamate + NH 3 Phenylalanine ammonia lyase (PAL) is the first and committed step in the phenyl propanoid pathway and is therefore involved in the biosynthesis of the polyphenol ...