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  • Title: The circular dichroism of lysozyme.
    Author: Tanaka F, Forster LS, Pal PK, Rupley JA.
    Journal: J Biol Chem; 1975 Sep 10; 250(17):6977-82. PubMed ID: 1171868.
    Abstract:
    The circular dichroism spectra of hen egg white lysozyme, and of lysozyme derivatives in which tryptophan residues 62 or 108, or both, are selectively oxidized, have been measured as a function of pH over the range of 200 to 310 nm. Neither Trp-62 nor Trp-108 is principally responsible for the positive rotational strength in the 280 to 300 nm region. The spectrum in the 200 to 230 nm region is nearly the same in the native protein and in the derivatives, and is little affected by binding of saccharide. These results are used to reinterpret the circular dichroism spectra of the lysozymes and alpha-lactalbumins.
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