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ENZYME

ENZYME entry: EC 4.3.1.23

PURL: https://purl.expasy.org/enzyme/EC/4.3.1.23
Accepted Name
tyrosine ammonia-lyase
Alternative Name(s)
L-tyrosine ammonia-lyase
TAL
tyrase
Reaction catalysed
L-tyrosine = (E)-4-coumarate + NH4(+)
Comment(s)
  • Member of the aromatic amino acid lyase family, other members of which are EC 4.3.1.3, EC 4.3.1.24 and EC 4.3.1.25.
  • Far more active with tyrosine than with phenylalanine as substrate, but the substrate specificity can be switched by mutation of a single amino acid (H89F) in the enzyme from the bacterium Rhodobacter sphaeroides.
  • Formerly EC 4.3.1.5.
Cross-references
BRENDA4.3.1.23
EC2PDB4.3.1.23
ExplorEnz4.3.1.23
KEGG Ligand Database for Enzyme Nomenclature4.3.1.23
IUBMB Enzyme Nomenclature4.3.1.23
MEDLINEFind literature relating to 4.3.1.23
MetaCyc4.3.1.23
Rhea expert-curated reactions4.3.1.23
UniProtKB/Swiss-Prot
Q3IWB0, TALY_CERS4Q1LRV9, TALY_CUPMCQ0VZ68, TAM_CHOCO
B8ZV93, TAM_MYXFUB8ZV94, TAM_MYXSMQ8GMG0, TAM_STRGL

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 4.3.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 4.3.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 4.-.-.-