Important neurotransmitters like dopamine and serotonin are made from amino acids tyrosine and tryptophan, respectively. (everywomanover29.com)
This cured the mice of the hereditary disease tyrosinemia, which causes the amino acid tyrosine to accumulate and can lead to liver failure. (discovermagazine.com)
People with OCA1 have mutations in a gene called TYR that is responsible for production of the enzyme tyrosinase, used by cells to convert the amino acid tyrosine into pigment. (scientificamerican.com)