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One of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s. It is neutral but polar.

One of the twenty common [[amino acid]]s used by living organisms to build [[proteins]]. It is [[aliphatic]] and

In bacteria, the chemical precursor for the biosynthesis of the [[amino acid]]s [[phenylalanine]], [[tyrosine]] and [[tryptophan]].

...ld 5,6,7,8-tetrahydrofolate and [[NADPH]]+, producing reduced folate for [[amino acid]] metabolism, [[purine]] ring synthesis, and the formation of deoxythymidin

One of the twenty common [[amino acid]]s and one of two that contains a [[sulphur]] atom.

...ed '''Phe''' or '''F''', is one of the twenty common <math>\alpha</math>-[[amino acid]]s used by living organisms to build [[protein]]s. It is one of four [[aro Both phenylalanine and [[tyrosine]] are essential [[amino acid]]s that are biosynthesized by bacteria starting from [[chorismate]] then [[

...occurring [[sulfonic acid]]s and it a derivative of [[cysteine]], another amino acid important in liver detoxification.

...ginine''', abbreviated '''Arg''' or '''R''', is one of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s. It is one of the charge

...yl cycle]], and it is synthesized from a condensation reaction between the amino acid [[serine]] and [[homocysteine]].

...ng synthesis of proteins to determine, via RNA intermediates, the order of amino acid residues in proteins. ...ise'' determination of sequence, either of bases in the nucleic acid or of amino acid residues in the protein.</blockquote>

A 32 amino acid polypeptide secreted by the ventricles of the heart in response to excessiv

{{r|Amino acid}}

{{r|Amino acid}}

...up from an adenosine triphosphate (ATP) to the hydroxyl oxygen atom on the amino acid tyrosine.

...not need carnitine to enter the mitrochondrion. Carnitine is an essential amino acid for some animals.

...e-to-one correspondance in going from codon to amino acid, but not from an amino acid to codons. There is only one [[start codon]], AUG, which serves as the cod

{{r|Amino acid}}

...lamines''' are a class of biologically active substances, derived from the amino acid, [[tyrosine]]. Chemically, they are ortho-dihydroxyphenylalkylamines.

...idative linkage between two molecules of [[cysteine]], one of the common [[amino acid]]s, in the form of a [[disulfide bond]]. It may also refer to such a bond t