Publication date: February 2018
Source:Journal of Photochemistry and Photobiology B: Biology, Volume 179
Author(s): Sabera Millan, Lakkoji Satish, Krishnendu Bera, Monidipa Konar, Harekrushna Sahoo
In this present work, a detailed investigation of the effect of an anticancer drug, 5-Fluorouracil (5-FU), on conformation, stability and activity of lysozyme (Lyz) was reported. The interaction between Lyz and 5-FU was reflected in terms of intrinsic fluorescence quenching and change in secondary structure of Lyz. The mode of quenching mechanism involved was evaluated by the steady-state and time-resolved fluorescence measurements. Synchronous and Circular Dichroism (CD) results revealed the conformational changes induced in Lyz upon complexation with 5-FU. Additionally, the effect of temperature and chemical denaturant on the stability of Lyz-5FU complex was carried out. As well as the activity of Lyz in the absence and presence of 5-FU were measured using Micrococcus luteus strain. To support our experimental findings, in vitro interaction between Lyz and 5-FU was done by theoretical studies. The current study will provide a better understanding on the nature of the interactions possible between proteins and drug molecules, which might create a bench mark in medical science in terms of the toxic effect or biological benefits of drug molecules on protein structure and conformation.
Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00306932607174,00302841026182,alsfakia@gmail.com
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Παρασκευή 5 Ιανουαρίου 2018
Exploring the effect of 5-Fluorouracil on conformation, stability and activity of lysozyme by combined approach of spectroscopic and theoretical studies
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