Article
Role of the rasGAP-associated docking protein p62(dok) in negative regulation of B cell receptor-mediated signaling.
Genes & development - 1 Jan 2000
Yamanashi Y, Tamura T, Kanamori T, Yamane H, Nariuchi H, Yamamoto T, Baltimore D
Abstract excerpt
Antigenic stimulation of the B-cell receptor (BCR) is a central event in the immune response. In contrast, antigen bound to IgG negatively regulates signals from the BCR by cross-linking it to the inhibitory receptor FcgammaRIIB. Here we show that upon cross-linking of BCR or BCR with FcgammaRIIB, the rasGAP-associated protein p62(dok) is prominently tyrosine phosphorylated in a Lyn-dependent manner. Inactivation...
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