Dynamics of Proteins by Thermal Decay of Free Radicals Induced by Ultraviolet Irradiation
Joint Authors
Alekperov, O. Z.
Aslanov, Rasim B.
Dashdemirova, Leman M.
Abdurahimov, Azad R.
Gasymov, Oktay K.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-28
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The relationship between structure, dynamics, and function of biomolecules is a fundamental interest of biophysics.
Protein dynamics drastically vary in temporal and spatial scales.
The function of a particular protein determines the significance of a distinct type of dynamics.
Here, we investigate the influence of hydration water on the dynamics of a protein called silk fibroin.
Particular interest is to investigate the protein dynamics using thermal decay of the free radicals induced by ultraviolet irradiation.
The full decay of the free radicals occurs at very wide temperature region (120 K–340 K).
Three distinct regions with transition points of ∼135 K, 205 K, and 279 K are apparent in the thermal decay curves of hydrated fibroin samples.
The first transition (∼135 K) that leads 2–6% increase of total spins was observed only in the decay curves of fibroin submerged in 40% and 50% glycerol.
The second transition (∼205 K) was invariant for all samples, hydrated and dry fibroins.
The third transition of 279 K common for all hydrated fibroin samples was shifted about 84 K to a higher temperature of 363 K in dry fibroin.
The thermal transitions at 205 K and 279 K are weakly and strongly, respectively, coupled to water molecules.
Nature of the free radicals participated in these transitions was identified.
The significance of the findings for protein dynamics is discussed.
American Psychological Association (APA)
Aslanov, Rasim B.& Dashdemirova, Leman M.& Alekperov, O. Z.& Abdurahimov, Azad R.& Gasymov, Oktay K.. 2018. Dynamics of Proteins by Thermal Decay of Free Radicals Induced by Ultraviolet Irradiation. Journal of Spectroscopy،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202578
Modern Language Association (MLA)
Aslanov, Rasim B.…[et al.]. Dynamics of Proteins by Thermal Decay of Free Radicals Induced by Ultraviolet Irradiation. Journal of Spectroscopy No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1202578
American Medical Association (AMA)
Aslanov, Rasim B.& Dashdemirova, Leman M.& Alekperov, O. Z.& Abdurahimov, Azad R.& Gasymov, Oktay K.. Dynamics of Proteins by Thermal Decay of Free Radicals Induced by Ultraviolet Irradiation. Journal of Spectroscopy. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202578
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1202578