phenylalanine

(= Phe; F; 165D) An essential amino acid with an aromatic side chain. See Table A2.
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Phenylalanine

Phenylalanine n (abbreviated as Phe or F) is an α-amino acid with the formula C6H5CH2CH(NH2)COOH. This essential amino acid is classified as nonpolar because of the hydrophobic nature of the benzyl side chain. L-Phenylalanine (LPA) is an electrically neutral amino acid used to biochemically form proteins, coded for by DNA. The codons for L-phenyl...
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phenylalanine

<amino acid> One of the amino acids which the body cannot manufacture itself, but must acquire from food. It is abundant in meats and cheese. ... Phenylalanine is a precursor of tyrosine and together they lead to the formation of thyroxine or thyroid hormone and of adrenaline and noradrenaline which is converted into a neurotransmitter, a bra...
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phenylalanine

(fen″әl-al´ә-nēn) a naturally occurring essential amino acid that is necessary for optimal growth in infants and for nitrogen equilibrium in adults. phenylalanine hydroxylase , phenylalanine 4-monooxygenase an enzyme that activates molecular oxygen ...
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phenylalanine

noun an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body
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phenylalanine

(Phe, F) Type: Term Pronunciation: fen′il-al′ă-nēn Definitions: 1. the l-isomer is one of the common amino acids in proteins; a nutritionally essential amino acid.
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phenylalanine

an amino acid present in the mixture obtained upon hydrolysis of common proteins. Human hemoglobin (the oxygen-carrying pigment of red blood cells) ... [10 related articles]
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phenylalanine

phenylalanine (fen"ulăl'unēn") , organic compound, one of the 22 α-amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is one of several essential amino acids needed in the diet; human beings cannot synthesize it from ...
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Phenylalanine

Phenylalanine: An essential amino acid. (The human body cannot make it so it is essential to the diet.) Phenylalanine that is ingested is largely transformed (hydroxylated) to form the amino acid tyrosine, which is used in protein synthesis. Too little phenylalanine curbs physical and intellectual growth. Too much phenylalanine, as in phenylketonur...
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phenylalanine

[n] - an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults
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