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The tetracysteine sequence YRECCPGCCMWR fused to the N terminus of green fluorescent protein (GFP) self-aggregates upon biarsenical labeling in living cells or in vitro. Such dye-triggered aggregates form temperature-dependent morphologies and are dispersed by photobleaching. Fusion of the biarsenical aggregating GFP to the regulatory (R) or catalytic (C) subunit of PKA traps intact holoenzyme in...
Background: The protein kinase C (PKC) family of serine/threonine-specific protein kinases is involved in many cellular processes, and the -unregulated activation of PKC has been implicated in carcinogenesis. PKC inhibitors thus have significant potential as chemotherapeutic agents. Recently, the fungal metabolite balanol was shown to be an exceptionally potent inhibitor of PKC. We previously developed...
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