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- W2003022186 abstract "Latent Membrane Protein 2A (LMP2A) is an Epstein-Barr virus-encoded protein that is important for the maintenance of latent infection. Its activity affects cellular differentiation, migration, proliferation and B cell survival. LMP2A resembles a constitutively activated B cell antigen receptor and exploits host kinases to activate a set of downstream signaling pathways. In the current study we demonstrate the interaction of LMP2A with intersectin 1 (ITSN1), a key endocytic adaptor protein. This interaction occurs via both the N- and C-tails of LMP2A and is mediated by the SH3 domains of ITSN1. Additionally, we identified the Shb adaptor and the Syk kinase as novel binding ligands of ITSN1. The Shb adaptor interacts simultaneously with the phosphorylated tyrosines of LMP2A and the SH3 domains of ITSN1 and mediates indirect interaction of ITSN1 to LMP2A. Syk kinase promotes phosphorylation of both ITSN1 and Shb adaptors in LMP2A-expressing cells. In contrast to ITSN1, Shb phosphorylation depends additionally on Lyn kinase activity. Considering that Shb and ITSN1 are implicated in various receptor tyrosine kinase signaling, our results indicate that LMP2A can affect a number of signaling pathways by regulating the phosphorylation of the ITSN1 and Shb adaptors." @default.
- W2003022186 created "2016-06-24" @default.
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- W2003022186 date "2013-01-01" @default.
- W2003022186 modified "2023-10-01" @default.
- W2003022186 title "The LMP2A protein of Epstein–Barr virus regulates phosphorylation of ITSN1 and Shb adaptors by tyrosine kinases" @default.
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- W2003022186 doi "https://doi.org/10.1016/j.cellsig.2012.09.011" @default.
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