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Immunol Rev. 1998 Oct;165:167-80.

The Syk family of protein tyrosine kinases in T-cell activation and development.

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  • 1Department of Microbiology and Immunology, University of California, San Francisco, USA.

Abstract

The processes of T-cell development and activation employ similar immature and mature receptors as well as similar signal transduction pathways to achieve different outcomes. Many signaling molecules are shared between the receptor signaling pathways, including two families of cytoplasmic protein tyrosine kinases, the Src family and the Syk family. The two Syk family members expressed in T cells, Syk and ZAP-70, are structurally similar but are expressed at different times during thymic development and during T-cell activation. These two kinases, although they share many physical features, differ in terms of biochemical activity and regulation. We discuss the overlapping and distinct characteristics of Syk and ZAP-70 in T-cell signaling and the potential biological importance of their differences.

PMID:
9850860
[PubMed - indexed for MEDLINE]
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