The role of the arginine-B22 residue in insulin action. 1981

K Rose, and A R Rees, and C S Drake, and R E Offord

We describe the modification of the side chain of the arginine-B22 residue of insulin by the N8N9-(1, 2-dihydroxycyclohex-1,2-ylene) group and by the adipoyl group. These are the first insulin derivatives described that contain a modified arginine residue in an otherwise unaltered molecule. When tested for their ability to lower blood sugar concentration, both modified insulins showed a specific activity indistinguishable from that of insulin. In view of the fact that the substituent groups involved are very bulky and in one case of opposite charge to that of the side chain, the retention of biological activity casts doubt on the idea, previously generally accepted, that the arginine-B22 residue is essential to the activity of the hormone.

UI MeSH Term Description Entries
D007328 Insulin A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1). Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D004588 Electrophoresis, Cellulose Acetate Electrophoresis in which cellulose acetate is the diffusion medium. Cellulose Acetate Electrophoreses,Cellulose Acetate Electrophoresis,Electrophoreses, Cellulose Acetate
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001120 Arginine An essential amino acid that is physiologically active in the L-form. Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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