How To Use Meters 2ND Edition by John Rider

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In eukaryotes, HDACs modulate the acetylation of histones and hence play a key role in the regulation of gene expression (33). HDAC deregulation has been linked to several types of cancer, and recently, the HDAC inhibitor suberoylanilide hydroxamic acid (SAHA) was approved for the treatment of cutaneous T-cell lymphoma (34). Crystal structures of several inhibitor bound complexes of human HDAC8 (35) reveal that the surface of the active-site pocket contains flexible 1 The Utility of Structural Biology in Drug Discovery 23 Fig.

Suspension cultures, in combination with fed-batch approaches allow for very high cell densities and overall increases in protein production. Many commercially available vectors contain strong promoters, such as simian vacuolating virus 40 (SV40) or cytomegalovirus (CMV) immediate early promoter, in addition to dominant and recessive selection markers such as neomycin or dihydrofolate reductase (DHFR), respectively. Homologous recombination of the expression cassette into regions of high transcription has been shown to increase the expression levels of recombinant proteins.

The mobile activation loop is colored black in each panel. Gleevec™ is a fairly selective inhibitor that binds to few kinases, including Abl kinase and platelet-derived growth factor kinase (31, 32). The basis for this selectivity stems from the fact that the inhibitor targets a kinase conformation that resembles the inactive state (compare the activation loop conformations in (b) and (c)). However, Gleevec™ binding disrupts the fully autoinhibited state by preventing the association of the juxtamembrane domain with the kinase domain.