Sanger’s electrophoresis equipment, Europe, 1950-1958
Frederick Sanger (b. 1918), a British biochemist, used this equipment to study the structure of insulin by electrophoresis in the 1950s. Electrophoresis sepa-rates different proteins in cells using an electrical current. Molecules move at different rates depending on their electrical charge, forming different bands on filter paper. Sanger won the Nobel Prize for Chemistry in 1958 for determining the structure of insulin.
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Glossary: filter paper
One of the fundamental units forming a chemical compound; the smallest part of a chemical compound that can take part in a chemical reaction
A hormone that causes the body's cells to take up glucose from the blood. (Diabetes is the loss of control of the body's levels of insulin.)
The process of separating electrons in a solution by passing an electric current through it.
Proteins are large organic compounds made of amino acids. They are essential to all living cells and organisms.
Basic unit of all living organisms, it can reproduce itself exactly.