期刊
ASSAY AND DRUG DEVELOPMENT TECHNOLOGIES
卷 5, 期 3, 页码 381-390出版社
MARY ANN LIEBERT INC
DOI: 10.1089/adt.2006.039
关键词
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One of the major hurdles in the post-genomic era is to understand the function of genes and the interplay of many different cellular proteins. This is especially important for drug development. Capture compound mass spectrometry (CCMS) addresses this challenge by selectively reducing the complexity of the proteome. Capture compounds are trifunctional molecules: a selectivity function reversibly interacts via affinity with proteins; a reactivity function irreversibly forms a covalent bond outside the affinity binding site; and a sorting/pullout function allows the captured protein(s) to be isolated from cellular lysate for mass spectrometric analysis and characterization by database queries. In the present study, we demonstrate the use of a CCMS capture compound with a sulfonamide drug analog as its selectivity function, isolating an expected target protein from cell lysates containing a large excess of other non-target proteins. A future application of CCMS is to define or confirm drug target proteins and their mechanisms of drug action, or to discover off-target proteins that cause side effects, enabling subsequent drug structure optimization.
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