Ultra-Violet Absorption Spectra of Proteins in Deuterium Oxide


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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  1. 1

    Takashima, S., Nature, 187, 597 (1960).

  2. 2

    Beaven, G. H., and Holiday, E. R., in Advances in Protein Chemistry, 7, 319 (1952).

  3. 3

    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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