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Protective effect of melatonin on photo-damage to lysozyme

Paper ID Volume ID Publish Year Pages File Format Full-Text
30398 44476 2009 6 PDF Available
Title
Protective effect of melatonin on photo-damage to lysozyme
Abstract

The behavior of melatonin in the riboflavin-sensitized photo-oxidation of lysozyme was monitored. Melatonin was found to prevent aggregation of protein and the decrease of enzyme activity induced by photo-oxidation. Electron spin resonance experiments showed that photo-oxidation of lysozyme in the presence of riboflavin resulted in formation of protein radicals, and melatonin was highly effective in reducing the formation of protein radicals. Direct evidence of melatonin’s ability for quenching the triplet state of riboflavin and singlet oxygen was presented. A mechanism of the protective effect of melatonin on photo-oxidation of protein was proposed and the physiological relevance was discussed.

Keywords
Protein; Antioxidant; Melatonin; Photo-oxidation; Spin trapping
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Protective effect of melatonin on photo-damage to lysozyme
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 94, Issue 2, 9 February 2009, Pages 125–130
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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