LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Insulin hormone. Molecular model of the bovine form of the hormone insulin, produced by the pancreas in mammals to aid the body in metabolising sugars. A lack of this hormone is the cause of diabetes. Bovine insulin is virtually identical to human insulin, and is used to treat diabetics. The model shows two ways to represent the structure. The tubular form shows the atoms and the bonds, while the helical ribbons show the shape of the molecule. The molecule consists of two peptide chains, A (blue/green) and B (yellow/orange), which are linked by disulphide bridges (bonds between 2 sulphur atoms). This model shows 460 atoms.
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