Novo Industri A/s

Mogens T Hansen

Lars Thim

Kjeld Norris

Jan Markussen

Fanny Norris

Alister J Moody

Gustav Ammerer

Hans O Voigt

Niels Fiil

Human insulin precursors containing the peptide chain B(1-29)-A(1-21) of human insulin and derivatives thereof with a bridging chain connecting the carboxyl terminus of the B(1-29)-chain with the amino terminus of the A(1-21)-chain are prepared by culturing a yeast host transformed with a replicable expression vehicle capable of expressing a DNA-sequence encoding the insulin precursor. The bridging chain is preferably relatively short and contains preferably from 2 to 8 amino acid residues. The bridging chain must not contain two adjacent basic amino acid residues (Lys or Arg) and has one Lys or Arg connected to the amino terminus of the A(1-21)-chain. Human insulin is prepared from the insulin precursors by in vitro conversion.

DNA-sequence encoding biosynthetic insulin precursors and process for

Glucagon or fragments or derivatives thereof are prepared by cultivation of a yeat strain transformed with a replicable expression vehicle comprising a gene encoding the expression of such products. Synthetic genes encoding glucagon or derivatives thereof have been constructed. Also provided are replicable expression vehicles comprising a replication system for providing stable maintenance in yeast and a DNA-sequence encoding glucagon or fragments or derivatives thereof and transformant yeast strains containing such expression vehicles.

Process for preparing glucagon or fragments or derivatives thereof in

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Olstykke, Denmark

Mogens T Hansen