Hopkins, Sir Frederick Gowland
Hopkins, Sir Frederick Gowland (1861–1947) British biochemist; discovered the amino acid tryptophan (1902, jointly with S. W. Cole), and later its essentiality; ‘accessory food factors’ (later named vitamins) 1906. Also discovered glutathione, and xanthine oxidase, the enzyme responsible for uric acid formation; Nobel Prize 1929.
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valine An aliphatic, non-polar, alpha-amino acid.
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aspartic acid (aspartate) A non‐essential amino acid.
aspartic acid An aliphatic, acidic, p…
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Sir Frederick Gowland Hopkins
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Sir Frederick Gowland Hopkins