Abstract
TAKASHIMA1 recently reported that when dissolved in deuterium oxide (D2O) several proteins exhibited a new absorption band at about 265 mµ, in addition to the well-known absorption bands due to aromatic amino-acid residues2. The additional band was also found in a solution of clupein in deuterium oxide; this protein contains no aromatic amino-acid residues, and when pure shows no significant absorption in aqueous solution at wave-lengths longer than 250 mµ. The 265 mµ band was also found in deuterium oxide solutions of six of ten amino-acids examined.
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References
Takashima, S., Nature, 187, 597 (1960).
Beaven, G. H., and Holiday, E. R., in Advances in Protein Chemistry, 7, 319 (1952).
Holiday, E. R., J. Sci. Instr., 14, 166 (1937).
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BEAVEN, G., BAILEY, E. Ultra-Violet Absorption Spectra of Proteins in Deuterium Oxide. Nature 191, 914–915 (1961). https://doi.org/10.1038/191914a0
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DOI: https://doi.org/10.1038/191914a0
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