Cotton effect induced in optically inactive molecules and molecular complexes by optically active environment III. Circular dichroism induced by association of .ALPHA.-chymotrypsin and dyes.

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概要

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• Two types of circular dichroism (CD) spectra are found to be induced in the solution systems of α-chymotrypsin (αCT) and dyes. One is a single positive CD band which is due to a 1 : 1 αCT–dye complex (Type I; proflavine, Acridine Yellow G, acriflavine), and the other consists of one positive and one negative CD bands which are mainly due to a complex of the composition, one αCT to two dye molecules (Type II; Pyronin B, Rhodamine 6G). Mechanisms of CD induction tentatively proposed are that in Type I complexes a single dye molecule is bound to an asymmetric environment of the active site of αCT while in Type II complexes two dye molecules are bound at a specific site exerting a dipole-dipole interaction with one another.

• 公益社団法人 日本化学会の論文

著者

• Oikawa Yasunobu

  Department of Materials Science and Laboratory of Magneto-Electron Physics, The University of Electro-Communications

• Nakamura Tomoyasu

  Department of Materials Science and Laboratory of Magneto-Electron Physics, The University of Electro-Communications

• Nakamura Tomoyasu

  Department of Chemistry, Tokyo Kyoiku University

関連論文

• Cotton effect induced in optically inactive molecules and molecular complexes by optically active environment III. Circular dichroism induced by association of .ALPHA.-chymotrypsin and dyes.
• Theoretical analysis of optical rotatory power of methylcyclohexanone with treatment of conformational equilibria.

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