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FEBS Lett. 1999 Oct 22;460(1):93-8.

BH-protocadherin-c, a member of the cadherin superfamily, interacts with protein phosphatase 1 alpha through its intracellular domain.

Author information

1
Department of Virology, Institute of Medical Science, The University of Tokyo, Japan.

Abstract

Using a yeast two-hybrid system, we isolated eight cDNA clones which interacted with BH-protocadherin-c (BH-Pcdh-c) from the human brain cDNA library. One clone encoded protein phosphatase type I isoform alpha (PP1alpha) and another two PP1alpha2. PP1alpha was co-immunoprecipitated from the extract of a gastric adenocarcinoma cell line MKN-28 with anti-BH-Pcdh-c antibody. PP1alpha activity towards glycogen phosphorylase was inhibited by the intracellular domain of BH-Pcdh-c. Inhibition of the phosphatase required more than the minimal domain of BH-Pcdh-c which could associate with PP1alpha. In situ hybridization revealed that BH-Pcdh-c mRNA was predominantly expressed in cerebral cortex neurons in the adult mouse brain.

PMID:
10571067
DOI:
10.1016/s0014-5793(99)01309-5
[Indexed for MEDLINE]
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