Effect of Ketonic Organic Solvents on Thermolysin: A Spectrophotometric Approach
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概要
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Ultraviolet spectra of thermolysin on mixing with n-alkyl ketones were investigated. Hypochromic effect of UV spectra of enzyme and model compounds was observed. A clear batho-chromic shift (red shift) of thermolysin spectrum was also demonstrated. With increase in chain length of ketones, the red shift was found reduced. The hypochromic and bathochromic effects were significantly suppressed when enzyme or model compounds were pre-treated with inhibitor (phosphor-amidon). There had been no such effect of ketones upon mixing with substrates. It was speculated that ketones interact with the UV sensitive aromatic amino acid residues at the microenvironment of active site of enzyme.
- 信州大学農学部の論文
- 1997-09-25
信州大学農学部 | 論文
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