Anti-NTAL Purified LAT2 Monoclonal Antibody

NTAL (non-T cell activation linker), also known as LAB (linker for activation of B cells), is a 30 kDa double-palmitoylated transmembrane adaptor protein expressed by B cells, NK cells, mast cells and macrophages. It is a negative regulator of early stages of BCR-dependent B cell signaling and serves as a negative regulator also in mast cells. However, in mast cells, NTAL also contributes to some activation processes, partially overlapping with LAT function.

Peptide corresponding to aa 196-212 of human NTAL coupled to KLH. The antibody NAP-03 recognizes a defined intracellular epitope (aa 196-212) of human Non-T cell Activation Linker (NTAL), also known as LAB (linker of activated B cells), a 30 kDa transmembrane adaptor protein associating with lipid raft components in the plasma membrane of B cells, NK cells and myeloid cells.

Highly expressed in spleen, peripheral blood lymphocytes, and germinal centers of lymph nodes. Also expressed in placenta, lung, pancreas and small intestine. Present in B- cells, NK cells and monocytes. Absent from T-cells (at protein level) .

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