CYSTEINE - Definition

Pronunciation:		'sistee`een
WordNet Dictionary

	Definition:	[n] an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine

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	See Also:	amino acid, aminoalkanoic acid

Biology Dictionary

	Definition:	One of the twenty naturally occurring amino acids. Has the following chemical characteristics: pKa1 pKa2 pKa3 pI Water Solubility (30deg C) 1.71 8.33 10.78 5.02