Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS.
Peptide,Polypeptide,Polypeptides
D000596
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.
Amino Acid,Acid, Amino,Acids, Amino
D001593
Benzyl Compounds
Benzene derivatives that contain a benzyl group with the general formula Phenyl-CH2-R.
Compounds, Benzyl
D012263
Ribonucleosides
Nucleosides in which the purine or pyrimidine base is combined with ribose. (Dorland, 28th ed)