A tale of two TRAPs: LAT and LAB in the regulation of lymphocyte development, activation, and autoimmunity.


Journal Article (Review)

Transmembrane adaptor proteins (TRAPs) link antigen receptor engagement to downstream cellular processes. Although these proteins typically lack intrinsic enzymatic activity, they are phosphorylated on multiple tyrosine residues following lymphocyte activation, allowing them to function as scaffolds for the assembly of multi-molecular signaling complexes. Among the many TRAPs that have been discovered in recent years, the LAT (linker for activation of T cells) family of adaptor proteins plays an important role in the positive and negative regulation of lymphocyte maturation, activation, and differentiation. Of the two members in this family, LAT is an indispensable component controlling T cell and mast cell activation and function; LAB (linker for activation of B cells), also called NTAL, is necessary to fine-tune lymphocyte activation and may be a key regulator of innate immune responses. Here, we review recent advances on the function of LAT and LAB in the regulation of development and activation of immune cells.

Full Text

Duke Authors

Cited Authors

  • Fuller, DM; Zhu, M; Ou-Yang, C-W; Sullivan, SA; Zhang, W

Published Date

  • April 2011

Published In

Volume / Issue

  • 49 / 1-3

Start / End Page

  • 97 - 108

PubMed ID

  • 21136199

Pubmed Central ID

  • 21136199

Electronic International Standard Serial Number (EISSN)

  • 1559-0755

Digital Object Identifier (DOI)

  • 10.1007/s12026-010-8197-3


  • eng

Conference Location

  • United States