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Frederick Sanger Biography | World of Chemistry |
 | | Frederick Sanger was born in Rendcombe, Gloucestershire, England, on August 3, 1918. |
 | | This was a slow process, requiring Sanger to examine the stains left by the amino acids after they were strained through paper filters, but the technique resulted in the eventual identification of all amino acid groups in the insulin molecule. |
 | | Sanger's next objective was to determine the sequence of the amino acids present in insulin, but this work was made more difficult by the fact that the insulin molecule actually consists of two separate chains of amino acids joined to each other at two points by sulfur-sulfur bonds. |
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