Insulin synthesis by recombination of A and B chains: a highly efficient method.

Abstract
A procedure is described by which natural chains prepared by oxidative sulfitolysis of bovine insulin are recombined to produce insulin in yields ranging from 60 to 80% of theory. This procedure was applied with favorable results to the combination of the synthetic chains of sheep insulin with the corresponding chains of bovine insulin. The high recombination of yields strongly suggest that as far as insulin is concerned, the essential information for the proper alignment of the insulin chains to produce the protein is contained within the primary structure of the chains.