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Publication : Characterization of a specific interaction between ADAM23 and cellular prion protein.

First Author  Costa MD Year  2009
Journal  Neurosci Lett Volume  461
Issue  1 Pages  16-20
PubMed ID  19477226 Mgi Jnum  J:150665
Mgi Id  MGI:3851289 Doi  10.1016/j.neulet.2009.05.049
Citation  Costa MD, et al. (2009) Characterization of a specific interaction between ADAM23 and cellular prion protein. Neurosci Lett 461(1):16-20
abstractText  ADAMs are transmembrane proteins implicated in several biological functions, including cytokine and growth factor shedding, fertilization, muscle and nervous system development. Here, we show for the first time that ADAM23, which is predominantly expressed in the central nervous system, co-localizes with cellular prion protein (PrP(C)) at plasma membrane of mouse hippocampal neurons and neuroblastoma cells. Co-immunoprecipitation and pull-down assay showed a physical interaction between ADAM23 and both recombinant and endogenous PrP(C). Glycosylation seems to be not relevant to the observed interaction since both ADAM23 and PrP(C) recombinant proteins expressed in bacteria or extracted from eukaryotic cells treated with tunicamycin are still able to bind each other. In vitro binding assays also suggested that the disintegrin domain of ADAM23 is able to interact directly with PrP(C). Taken together, these findings point out PrP(C) as a novel molecular partner for ADAM23 in the nervous systems.
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