A relevância dos aminoácidos alfametil meteoríticos para a homoquiralidade prebiótica

Reply to Bada: The relevance of meteoritic alpha-methyl amino acids to prebiotic homochirality

Ronald Breslow,1

+Author Affiliations

Department of Chemistry, Columbia University, New York, NY 10027

In his letter Bada (1) is complimentary with respect to the work we actually performed and reported in a recent issue of PNAS (2). However, he is skeptical about the relevance of the alpha-methyl amino acids found by others in the Murchison meteorite, species with a few percent of an excess of the L enantiomers. He states that the amount delivered would not be “sufficient,” although he does not produce or justify any estimate of how much …

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1E-mail: rb33@columbia.edu