Abstract
The large zinc finger protein KRC regulates transcription of target genes via the κB gene enhancer element. As an attempt to investigate the cellular function of KRC, we have established cell lines stably transfected with KRC expression vectors. Introduction of a vector directing expression of a transcript antisense to KRC mRNAs in several mammalian cell lines resulted in accelerated proliferation. Furthermore, in HeLa cells, downregulation of KRC conferred anchorage-independent growth and promoted cell cycle progression without an intervening cytokinesis, culminating in the formation of multinucleated giant cells. Ultimately these cells died.
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