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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Nuclear particles containing RNA polymerase III complexes associated with the junctional plaque protein plakophilin 2.

Plakophilin 2, a member of the arm-repeat protein family, is a dual location protein that occurs both in the cytoplasmic plaques of desmosomes as an architectural component and in an extractable form in the nucleoplasm. Here we report the existence of two nuclear particles containing plakophilin 2 and the largest subunit of RNA polymerase ( pol) III (RPC155), both of which colocalize and are coimmunoselected with other pol III subunits and with the transcription factor TFIIIB. We also show that plakophilin 2 is present in the pol III holoenzyme, but not the core complex, and that it binds specifically to RPC155 in vitro. We propose the existence of diverse nuclear particles in which proteins known as plaque proteins of intercellular junctions are complexed with specific nuclear proteins.[1]

References

  1. Nuclear particles containing RNA polymerase III complexes associated with the junctional plaque protein plakophilin 2. Mertens, C., Hofmann, I., Wang, Z., Teichmann, M., Sepehri Chong, S., Schnölzer, M., Franke, W.W. Proc. Natl. Acad. Sci. U.S.A. (2001) [Pubmed]
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