Seleno-Amino Acid Found in Astragalus bisulcatus

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Science  02 Sep 1960:
Vol. 132, Issue 3427, pp. 618
DOI: 10.1126/science.132.3427.618


Ion-exchange and filter-paper columns were used in a separation of amino acids from an extract of Astragalus bisulcatus. Two amino acids were identified, S-methylcysteine and Se-methylselenocysteine.