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A cyclic, non-polar [[amino acid]] used in [[protein]]s.

A positively charged common [[amino acid]], incorporated into [[protein]]s.

{{r|amino acid}} {{r|essential amino acid}}

One of four common [[aromatic]] [[amino acid]]s in [[protein]]s.

One of the common [[amino acid]]s used in [[protein]] synthesis.

A '''peptide''' is a [[molecule]] consisting of two or more [[amino acid]]s. Peptides are smaller than [[protein]]s, with the division between the t

Enzymes that differ in amino acid sequence but catalyze the same chemical reaction.

A positively charged [[amino acid]] used by living systems to build [[proteins]].

An [[aliphatic]], non-polar, [[hydrophobic]] [[amino acid]]s incorporated into [[protein]]s.

...lude>A [[heterocycle|heterocyclic]] chemical compound, side chain of the [[amino acid]] [[tryptophan]]

One of three hydroxylated [[amino acid]]s used in [[protein]] synthesis; subject to phosphorylation.

...lude>A biochemical messenger and regulator, synthesized from the essential amino acid L-[[tryptophan]].

One of two common [[amino acid]]s used in [[protein]]s that contain a [[sulphur]] atom.

A 36-amino acid peptide neurotransmitter found in the CNS and autonomic nervous system.

An essential [[amino acid]] for some animals which carries long chain fatty acids across the inner mi

Naturally-occurring [[peptide]] and [[amino acid]] derivatives which are used to control the growth of [[cancer]].

One of three hydroxylated [[amino acid]]s in [[protein]]s; it may be [[phosphorylation|phosphorylated]]

...ine''', abbreviated as '''Leu''' or '''L''', is one of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s. It is one of the non-po

One of the common [[amino acid]]s incorporated into proteins. It is charged, polar, and hydrophilic.

One of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s.

...structures2.jpg/credit|{{Twenty amino acid structures2.jpg/credit}}<br/>|}}Amino acid structures.]] In [[biochemistry]], an <math>\alpha</math>-'''amino acid''' is an [[organic chemistry|organic]] [[monomer]] consisting of an [[amino

One of four common [[aromatic]] [[amino acid]]s use in [[protein]] synthesis; it may be [[phosphorylation|phosphorylated

One of the twenty common α-[[amino acid]]s used by living organisms to build [[protein]]s.

A thiol-containing [[amino acid]] formed by a demethylation of [[methionine]].<noinclude>{{DefMeSH}}</noinc

The theory of reciprocal relationship between the serum amino acid concentration and appetite.

...''' and abbreviated as '''Glu''' or '''E''', is one of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s. It is one of only two a

{{r|Amino acid}}

...p''' or '''W''', is the largest of the twenty common <math>\alpha</math>-[[amino acid]]s used by living organisms to build [[protein]]s. It is one of the four [

The second smallest of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s.

...ine''', abbreviated as '''Ser''' or '''S''', is one of the twenty common [[amino acid]]s used by living organisms to build [[protein]]s. It is one of the smalle

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