WANG Jian, ZHENG Xue-fang, CAO Hong-yu, ZHANG Xiao-hui. Synthesis of 4-Thio-5-iodouridine and The Interaction Between It and Human Serum Albumin[J]. Chinese Journal of Luminescence, 2013,34(3): 361-368
WANG Jian, ZHENG Xue-fang, CAO Hong-yu, ZHANG Xiao-hui. Synthesis of 4-Thio-5-iodouridine and The Interaction Between It and Human Serum Albumin[J]. Chinese Journal of Luminescence, 2013,34(3): 361-368 DOI: 10.3788/fgxb20133403.0361.
Synthesis of 4-Thio-5-iodouridine and The Interaction Between It and Human Serum Albumin
and the strong absorption of longer ultraviolet wave-UVA
etc.
and the anti-tumor activity of nucleoside compounds
a new compound of 4-thio-5-iodouridine was designed and synthesized. The structure was characterized by Infrared spectroscopy
nuclear magnetic resonanceand mass spectrometry. At the same time
the interactions between 4-thio-5-iodouridine and human serum albumin (HSA) were investigated by the fluorescence spectroscopy
ultraviolet-visible absorption spectrum(UV-Vis) and circular dichroism spectrum(CD). The results show that 4-thio-5-iodouridine has a static fluorescence quenching on human serum albumin (HSA). The quenching constants were calculated according to Stern-Volmer equation
and Lineweaver-Burk equation was used to calculate the binding constants. The main forces of both interactions have typical hydrophobic interaction from thermodynamic data to determination. The distance and FRET(fluorescence resonance energy transfer) efficiency between HSA and 4-thio-5-iodouridine were calculated according to Frster resonance energy transfer theory. The conformation of 4-thio-5-iodouridine on human serum albumin was studied using CD.
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references
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