Identifying modulators of protein-protein interactions using photonic crystal biosensors.

Identifying modulators of protein-protein interactions using photonic crystal biosensors.
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DOI:
10.1021/ja907066r
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发表时间:
2009-12-30
影响因子:
15
通讯作者:
Hergenrother, Paul J.
Hergenrother, Paul J.
中科院分区:
化学1区
文献类型:
--
作者:
Heeres, James T.;Kim, Seok-Ho;Leslie, Benjamin J.;Lidstone, Erich A.;Cunningham, Brian T.;Hergenrother, Paul J.

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Inhibitors and activators of protein-protein interactions are valuable as biological probes and medicinal agents, but are often difficult to identify. Herein we describe a high-throughput assay, based upon photonic crystal (PC) biosensors, for the identification of modulators of protein—protein interactions. Through the use of a D-biotin-tris-NTA (BTN) hybrid compound, any His6-tagged protein can be immobilized on the surface of a PC biosensor. Binding of the bound protein to its cognate partner is detected via a shift in the peak wavelength value. We demonstrate this assay with three protein-protein pairs (caspase-9—XIAP, caspase-7—XIAP, FKBP12-FRB) and their small molecule modulators.
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