The T-cell-specific adapter protein family: TSAd, ALX, and SH2D4A/SH2D4B
2009
Lapinski, Philip E. | Oliver, Jennifer A. | Bodie, Jennifer N. | Martí, Francesc | King, Philip D.
Adapter proteins play key roles in intracellular signal transduction through complex formation with catalytically active signaling molecules. In T lymphocytes, the role of several different types of adapter proteins in T-cell antigen receptor signal transduction is well established. An exception to this is the family of T-cell-specific adapter (TSAd) proteins comprising of TSAd, adapter protein of unknown function (ALX), SH2D4A, and SH2D4B. Only recently has the function of these adapters in T-cell signal transduction been explored. Here, we discuss advances in our understanding of the role of this family of adapter proteins in T cells. Their function as regulators of signal transduction in other cell types is also discussed.
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