期刊
ANALYTICAL BIOCHEMISTRY
卷 403, 期 1-2, 页码 30-35出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2010.03.044
关键词
Surface plasmon resonance; Kinetics; Association rate; Dissociation rate
Using Biacore's new regenerateable streptavidin capture (CAP) sensor chips, we investigated a number of biotinylation conditions for target ligands. We explored standard amine as well as the less commonly used carboxyl biotinylation methods. We illustrate the time scales required for efficient biotinylation as well as the hazards of overbiotinylation. We evaluated a range of desalting methods, including spin columns, dialysis membranes, and filters. Finally, we tested the effects of common buffer components, such as Tris and glycerol, on the biotinylation process. Together, our results serve as a general guide of the steps to consider when minimally biotinylating a target ligand. (C) 2010 Elsevier Inc. All rights reserved.
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