Linker for activation of T-cells family member 2 (LAT2)

Involved in FCER1 (high affinity immunoglobulin epsilon receptor)-mediated signaling in mast cells. May also be involved in BCR (B-cell antigen receptor)-mediated signaling in B-cells and FCGR1 (high affinity immunoglobulin gamma Fc receptor I)-mediated signaling in myeloid cells.

Couples stimulation of these receptors and their associated kinases with distal intracellular events through the recruitment of GRB2. .