Mini-proinsulin, their preparation and use.

A MINI - proinsulin which instead CHAIN ​​BRIDGE C amino acid ARG CHAINS AND B, show activity INSULIN AND SUITABLE FOR THE PRODUCTION OF DRUGS FOR DIABETES MELLITUS ELTRATAMIENTO. TRANSPOSE CAN ALSO SIMPLY Trypsin IN WHOSE an insulin derivative CHAIN ​​B LONGER IN ARG. This can be transformed into carboxypeptidase B. INSULIN CAN ALSO TRANSFORM mini-proinsulin VENTAJOSDA FORM DIRECTLY IN INSULIN FOR A COOKING PROCESS.