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Topics related to "DISCOVERED: BODY'S SELF-MADE ANTIBIOTIC ISOLEUCINE, HUMBLE AMINO ACID,"

	amino acid amino acid , any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins. They are characterized by the presence of a carboxyl group (COOH) and an amino group (NH 2 ) attached to the... Read more
	tryptophan tryptophan , organic compound, one of the 20 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 simpler metabolites. Young adults require... Read more
	glycine glycine , organic compound, one of the 20 amino acids commonly found in animal proteins. Glycine is the only one of these amino acids that is not optically active, i.e., it does not have d - and l -stereoisomers. It is structurally the simplest of the α-amino acids, having merely a... Read more
	essential amino acid essential amino acid An amino acid that an organism is unable to synthesize in sufficient quantities. It must therefore be present in the diet. In humans the essential amino acids are arginine, histidine, lysine, threonine, methionine, isoleucine, leucine, valine, phenylalanine, and tryptophan.... Read more
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	glutamic acid glutamic acid , organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l -stereoisomer occurs in mammalian proteins. Like aspartic acid , glutamic acid has an acidic carboxyl group on its side chain which can serve as both an acceptor and a donor of ammonia, a... Read more
	phenylalanine phenylalanine , 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 simpler metabolites. Young adults... Read more
	polypeptide polypeptide A peptide comprising ten or more amino acids. Polypeptides that constitute proteins usually contain 100–300 amino acids. Shorter ones include certain antibiotics, e.g. gramicidin, and some hormones, e.g. ACTH, which has 39 amino acids. The properties of a polypeptide are... Read more
	aspartic acid aspartic acid , organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l -stereoisomer participates in the biosynthesis of proteins. Its acidic side chain adds a negative charge and hence a greater degree of water-solubility to proteins in neutral solution and... Read more
	valine valine , 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, as the human body cannot synthesize it from simpler metabolites. Young adults... Read more