2.6.1.5	malfunction	knock out mutants for the At5g53970 show substantial reduction in TAT activity and a strong increase in tyrosine content. In addition, mutant lines display significantly reduced levels of tocopherols, suggesting a major role of At5g53970 in tocopherol biosynthesis	
2.6.1.5	malfunction	virus-induced gene silencing is used to evaluate the contribution of TyrAT to benzylisoquinoline alkaloids metabolism in opium poppy. TyrAT transcript levels were reduced by at least 80% in silenced plants compared with controls and show a moderate reduction in total alkaloid content	
2.6.1.5	metabolism	in vivo analysis by functional complementation shows that the gene is able to complement an Escherichia coli with a background of aminotransferase mutations that confers auxotrophy for L-tyrosine and L-phenylalanine	
2.6.1.5	metabolism	the enzyme inhibits tyrosine hydroxylase in neuronal cells	
2.6.1.5	metabolism	the enzyme is involved in rosmarinic acid biosynthesis	
2.6.1.5	physiological function	involved in aromatic amino acid metabolism	
2.6.1.5	physiological function	Petunia hybrida utilizes a microbial-like phenylpyruvate pathway to produce phenylalanine, and flux through this route is increased when the entry point to the arogenate pathway is limiting. The plant phenylpyruvate pathway utilizes cytosolic tyrosine aminotransferase that links the coordinated catabolism of tyrosine to serve as the amino donor. The enzyme is able to functionally complement the Escherichia coli phenylalanine auxotrophic mutant DL39 which lacks the three aminotransferases, AspC (aspartate aminotransferase), TyrB (L-Tyrosine aminotransferase) and IlvE (branched-chain aminotransferase)	
2.6.1.5	physiological function	overexpression of isoform TAT2 in Arabidopsis enhances tolerance to drought stress and osmotic stress	
2.6.1.5	physiological function	the enzyme plays an important role in the cytodifferentiation of oviducts in response to estrogen and in the progression of ovarian cancer in chickens