Alternative Splicing Products of the Gene for a Human Nuclear Actin-related Protein, hArpNβ/Baf53, that Encode a Protein Isoform, hArpNβS, in the Cytoplasm

A human nuclear actin-related protein, hArpNβ/Baf53, is a component of chromatin remodeling and histone acetyltransferase complexes. We identified two alternative splicing products of the gene for hArpNβ/Baf53. They encoded a protein isoform, hArpNβS; and its fusion product with green fluorescent protein was to be found in the cytoplasm, not the nucleus. The isoforms may contribute to functional regulation of these complexes.

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