Metreveli, N.O. და Namicheishvili, L.O. და Dzhariashvili, K.K. და Chikvaidze, E.N. და Mrevlishvili, G.M. (2006) A Microcalorimetric and Electron Spin Resonance Study of the Influence of UV Radiation on Collagen. Biophysics, 51 (1). С. 29-32. ISSN 0006-3509
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რეზიუმე
It was demonstrated microcalorimetrically that UV radiation cardinally changed the behavioral pattern of the temperature dependence of heat capacity of a collagen solution and decreased the enthalpy of collagen denaturation. It was discovered by electron spin resonance (ESR) that the primary products of UV-irradiated acid-soluble collagen were atomic hydrogen and the anion radical of acetic acid. The latter, when exposed to long-wavelength UV light, converted into the methyl radical, which interacted with acetic acid to produce the acetic acid radical. These free radicals interacted with the collagen molecule, leading to the appearance of seven superfine components with the split H=1.13 mT in the ESR spectrum. It was assumed that this spectrum is related to the free radical that occurred in the proline residue of the collagen molecule, which, in this particular case, was the major defect in the triple helix of collagen that caused instability of the macromolecule.
| ობიექტის ტიპი: | სტატია |
|---|---|
| თემატიკა: | Q Science > QC Physics Q Science > QH Natural history > QH301 Biology |
| ქვეგანყოფილება: | Institutes > Institute of Biophysics |
| განმათავსებელი მომხმარებელი: | პროფესორი ნუნუ მეტრეველი |
| განთავსების თარიღი: | 15 თებერვალი 2014 07:35 |
| ბოლო ცვლილება: | 15 თებერვალი 2014 07:35 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/989 |
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- A Microcalorimetric and Electron Spin Resonance Study of the Influence of UV Radiation on Collagen. (deposited 15 თებერვალი 2014 07:35) [ასახულია მიმდინარე დროს]
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