Spectroscopic determination of binding between human serum albumin and a platinum(II) dimethylsulfoxide complex

Autor: Sh. A. Markaryan, K. R. Grigoryan, Mikayel Aznauryan, L. G. Gevorkyan, N. A. Bagramyan
Rok vydání: 2008
Předmět:
Zdroj: Journal of Applied Spectroscopy. 75:593-596
ISSN: 1573-8647
0021-9037
DOI: 10.1007/s10812-008-9070-1
Popis: We have used electronic absorption and fluorescence spectroscopy to study binding between a platinum(II) dimethylsulfoxide complex (cis-[Pt(DMSO)2Cl2]) and human serum albumin (HSA), and the effect of complexation on the structure of the protein. We have calculated the binding parameters for binding between cis-[Pt(DMSO)2Cl2] and HSA. We have determined the binding constant KB = (1.2 ± 0.1)·103 M−1 and the Hill coefficient h = 1.03 ± 0.1. We have determined that binding between cis-[Pt(DMSO)2Cl2] and the protein leads to a change in the internal packing of the macromolecule.
Databáze: OpenAIRE