L-Phenylalanine is an amino acid, one of the twenty common amino acids used to biochemically form proteins, coded for by DNA. Phenylalanine is a precursor for tyrosine, the monoamine signaling molecules dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline), and the skin pigment melanin.
Phenylalanine is found naturally in the breast milk of mammals. It is used in the manufacture of food and drink products and sold as a nutritional supplement for its reputed analgesic and antidepressant effects. It is a direct precursor to the neuromodulator phenylethylamine, a commonly used dietary supplement.
The enzyme phenylalanine hydroxylase breaks down phenylalanine into tyrosine. This enzyme is essential for the conversion of phenylalanine to tyrosine in the body. Deficiency in this enzyme can lead to a build-up of phenylalanine, which can result in a condition called phenylketonuria (PKU).
Phenylalanine is a component in aspartame.
It has 718mg of phenylalanine.
Phenylalanine is a compound. Specifically it is 2-amino-3-phenylpropanoic acid.
PKU or phenylketonuria is caused by mutations in the gene that helps make an enzyme called phenylalanine hydroxylase or PAH. This enzyme is needed to convert the amino acid phenylalanine into other forms that the body uses and needs. When this gene is mutated the body can't break down foods that are high in protein such as milk, cheese, nuts, or meat.
The mRNA codons for phenylalanine are UUU and UUC. These codons code for the amino acid phenylalanine during the process of translation in protein synthesis.
The molecular formula for phenylalanine is C9H11NO2.
There are two codons that code for the amino acid phenylalanine: UUU and UUC.
There are two codons that code for the amino acid phenylalanine: UUU and UUC.
The molar mass of oxygen in phenylalanine is 16.00 g/mol. To calculate the mass percent of oxygen in phenylalanine, divide the molar mass of oxygen by the molar mass of phenylalanine, then multiply by 100. (16.00 g/mol / 165.19 g/mol) * 100 = 9.68% Therefore, the mass percent of oxygen in phenylalanine is approximately 9.68%.
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PKU stands for phenylketonuria, the classic symptom of which (and the diagnostic test for the disease) is phenylalanine in the urine. This is a genetic disorder in which the body is unable to process phenylalalanine, so it is excreted in the urine.