Peter G. Schultz.

• Localización: Scientific American, ISSN 0036-8733, Vol. 291, Nº. 6, 2004, págs. 50-50
• Idioma: inglés
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• Resumen

  • Focuses on the expansion of the genetic code's library of amino acids by Peter G. Schultz, an organic chemist at Scripps Research Institute, La Jolla, Calif. Nearly all life on earth is genetically coded to employ just 20 amino acids to make proteins, but rare exceptions also use one of two extra amino acids, selenocysteine and pyrrolysine. This fact of life raises the question of whether scientists can rewrite genetic codes to create proteins that could incorporate any of hundreds of synthetic amino acids invented over the years and that might have novel or superior properties. In the August 15, 2003, Science, Peter Schultz and his colleagues described how they engineered yeast that generated five such amino acids and wove them into proteins.