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Methionine
A sulfur-containing essential L-amino acid that is important in many body functions.
Amino Acids, Neutral
Amino acids with uncharged R groups or side chains.
Year introduced: 2001
Sulfur Compounds
Inorganic or organic compounds that contain sulfur as an integral part of the molecule.
Year introduced: 1998
Organic Chemicals
A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.
Amino Acids, Sulfur
Year introduced: 1974
Amino Acids, Peptides, and Proteins
Amino acids and chains of amino acids connected by peptide linkages.
Amino Acids, Essential
Amino acids that are not synthesized by the human body in amounts sufficient to carry out physiological functions. They are obtained from dietary foodstuffs.
Amino Acids
Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.
Year introduced: /metabolism was AMINO ACID METABOLISM 1965