Abstract
BLUMENTHAL-GOLDSCHMIDT et al.1 demonstrated that carbon-14 atoms from 14C-labelled HCN supplied to several types of seedling became incorporated almost exclusively into the amide-C of asparagine. Subsequent work2,3 indicated that these authors had selected, somewhat fortuitously, mainly asparagine-synthesizing species rather than others which incorporated 14C-cyanide almost entirely into a dipeptide, γ-glutamyl-β-cyano-alanine. This γ-glutamyl peptide is known as a normal constituent only of certain Vicia species4,5; its formation in other species is apparently dependent on an exogenous supply of cyanide.
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References
Blumenthal-Goldschmidt, S., Butler, G. W., and Conn, E. E., Nature, 197. 718 (1963).
Ressler, C., Giza, Y.-H., and Nigam, S. N., J. Amer. Chem. Soc., 85, 2874 (1963).
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Nigam, S. N., and Ressler, C., Abst. Sixth Intern. Congr. Biochem., New York, 222 (1964).
Floss, H., and Conn, E. E., Nature (following communication).
Schlossmann, K., and Lynen, F., Biochem. Z., 328, 591 (1957).
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DUNNILL, P., FOWDEN, L. Enzymatic Formation of β-Cyanoalanine from Cyanide by Escherichia coli Extracts. Nature 208, 1206–1207 (1965). https://doi.org/10.1038/2081206a0
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DOI: https://doi.org/10.1038/2081206a0
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