π-Cation interactions as the origin of the weak absorption at 532 nm observed in tryptophan-containing polypeptides

We have previously reported that bovine serum albumin (BSA) and other proteins that do not contain prosthetic groups exhibited a weak light absorption in the visible, only detectable by pulsed laser-induced optoacoustic spectroscopy (LIOAS). Human serum albumin (HSA) exhibited signals 25% higher tha...

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Bibliographic Details

Published in:	Photochemical & photobiological sciences Vol. 11; no. 6; p. 962
Main Authors:	Roveri, O A, Braslavsky, S E
Format:	Journal Article
Language:	English
Published:	England 01-06-2012
Subjects:	Animals Cations - chemistry Cattle Humans Lasers Oxidation-Reduction Peptides - chemistry Peptides - metabolism Photoacoustic Techniques Protein Stability Serum Albumin - chemistry Serum Albumin - metabolism Serum Albumin, Bovine - chemistry Serum Albumin, Bovine - metabolism Tryptophan - chemistry
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