Data for β-lactoglobulin conformational analysis after (-)-epigallocatechin gallate and metal ions binding

摘要

This data article contains complementary results related to the paper “Effect of metal ions on the binding reaction of (-)-epigallocatechin gallate to β -lactoglobulin” (Zhang et al., 2017) . Data was obtained by circular dichroism (CD) spectroscopy to investigate potential β -lactoglobulin ( β -Lg) conformational changes with different concentrations of EGCg and Cu 2+ or Al 3+ added to β -Lg. 500 μL of the 25 μM β -Lg solution containing EGCg (25 μM) or metal ions (0–500 μM) were measured, and the spectra were recorded. CD spectroscopy data present in this article indicated that the β -Lg-Cu, β -Lg-Al and β -Lg-EGCg interaction resulted in unfolding of the secondary structure of β -Lg.