Interaction between the peptide glutathione and linoleic acid hydroperoxide
✍ Scribed by Zamora, Rosario ;Millán, F. ;Hidalgo, F. J. ;Alaiz, M. ;Maza, Maria P. ;Olías, J. M. ;Vioque, E.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 405 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0027-769X
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✦ Synopsis
Incubation experiments in order to study the influence of some parameters in the fluorescence products formation have been carried out. It has been observed a greater efficiency with the relation linoleic acid hydroperoxide:glutathione, 2: 1, and a temperature of 37 "C. The complex formed working with labelled linoleic acid has been separated in two main fractions. The first one (without radioactivity) is fluorescent with excitation and emission maxima at 350 nm and 440 nm, respectively. It has been confirmed that this fraction consists of a complex of glutathione and short chain aldehydes. The fluorescence of the complex did not decrease by treatment with NaBH, or with pH. The NH, and SH groups take part in the lipid-peptide complex formation. The second, highly radioactive fraction includes free hydroperoxides and short chain hydroxy fatty acids.
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Acknowledgements
Assistance in experiments and analyses was given by Mr. J. L. NAVARRO.
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