Analysis of Binding Interaction between Bovine Serum Albumin and the Cobalt(II) Complex with Salicylaldehyde-2-phenylquinoline-4-carboylhydrazone

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概要

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• The interaction between bovine serum albumin (BSA) and the cobalt(II) complex with salicylaldehyde-2-phenylquinoline-4-carboylhydrazone (Co-SPC) was investigated using fluorescence spectroscopy, UV absorption, and circular dichroism (CD) under simulated physiologic conditions for the first time. Fluorescence data and UV absorption spectra revealed that the intrinsic fluorescence of BSA was strongly quenched by Co-SPC in terms of a static quenching process at a lower concentration of the complex and a combined quenching process at a higher concentration of the complex. Binding constants and binding sites were evaluated. The average binding distance between Co-SPC and BSA was obtained (2.28 nm) on the basis of Försters theory. The thermodynamic parameters indicated that hydrophobic force played a major role in the binding. The binding of Co-SPC to BSA leads to changes in the conformation of BSA according to synchronous fluorescence spectra and CD data.

著者

• XU Zhi-hong

  College of Electrical Engineering and Automation, Fuzhou University

• Xu Zhi-hong

  College Of Electrical Engineering And Automation Fuzhou University

• Liu Hong-yan

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry,

• Liu Xiao-hui

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry,

• Xi Pin-xian

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry,

• Zeng Zheng-zhi

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry,

• Liu Xiao-hui

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University

• Zeng Zheng-zhi

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University

• Xi Pin-xian

  College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University

• Xu Zhi-hong

  College of Chemistry and Chemical Engineering, Xuchang University

関連論文

• Analysis of Binding Interaction between Bovine Serum Albumin and the Cobalt(II) Complex with Salicylaldehyde-2-phenylquinoline-4-carboylhydrazone
• 3D Temperature Field Simulation & Analysis of Pantograph

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