Title : Negative regulation of B cell receptor-mediated signaling in B-1 cells through CD5 and Ly49 co-receptors via Lyn kinase activity.

Pub. Date : 2000 Oct

PMID : 11007759






4 Functional Relationships(s)
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1 It has been reported that BCR-mediated signaling in B-1 cells is negatively regulated by signals from CD22, CD5 and CD72 co-receptors, and that Lyn kinase plays a crucial role in tyrosine phosphorylation of immunoreceptor tyrosine-based inhibitory motifs on the CD22 and CD72, which recruits SHP-1 to the BCR complex. Tyrosine signal-regulatory protein alpha Mus musculus
2 It has been reported that BCR-mediated signaling in B-1 cells is negatively regulated by signals from CD22, CD5 and CD72 co-receptors, and that Lyn kinase plays a crucial role in tyrosine phosphorylation of immunoreceptor tyrosine-based inhibitory motifs on the CD22 and CD72, which recruits SHP-1 to the BCR complex. Tyrosine signal-regulatory protein alpha Mus musculus
3 We found that Lyn kinase is also essential for the tyrosine phosphorylation of CD5 and subsequent recruitment of SHP-1 in B-1 cells upon cross-linking of BCR. Tyrosine signal-regulatory protein alpha Mus musculus
4 Ly49 was rapidly tyrosine phosphorylated upon cross-linking of BCR and SHP-1 was found to recruit to the phosphorylated Ly49. Tyrosine signal-regulatory protein alpha Mus musculus