Under these conditions, the use of small quantities of zinc alone (without protamine or other protein substances) is ineffective in prolonging significantly the action of insulin. Larger ...

and more recently Scott has shown that the ease with which crystals can be obtained from amorphous insulin depends on the presence of small quantities of zinc (or some other metals), and that all ...

An electron density map has been calculated at a resolution of 2.8 Å which shows many details of the arrangement of the atoms in rhombohedral crystals of insulin.

40 Units per cc. National Museum of American History U-40 Lente Iletin (Insulin, Lilly), 10cc., 40 Units per cc. National Museum of American History U-40 Protamine, Zinc & Iletin (Insulin, Lilly), ...

The transporter protein ZnT8 (zinc transporter 8), which appears almost exclusively in the pancreas, is involved in the packaging, storage and secretion of insulin in pancreatic beta cells. We found ...

Onset may be delayed if regular insulin is mixed with zinc insulin. Regular and NPH insulins may be mixed and used immediately or stored for future use.