Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
31140 | Journal of Photochemistry and Photobiology B: Biology | 2008 | 8 Pages |
Abstract
In the present work, we have studied the interaction of proton transfer probe 1-hydroxy-2-naphthaldehyde (HN12) with Human Serum Albumin (HSA) and Bovine Serum Albumin (BSA) by steady state absorption and emission spectroscopy combined with time resolved fluorescence measurements. The measured binding constant (K) and free energy change (ΔG) indicate a stronger affinity of HN12 molecule for HSA than BSA. Steady state anisotropy, excitation anisotropy and fluorescence resonance energy transfer (FRET) studies indicate that the probe molecule resides at the hydrophobic site of the protein environment.
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Authors
Rupashree Balia Singh, Subrata Mahanta, Nikhil Guchhait,