Docking Protein 2 (DOK2) Antibody

Background

Docking protein 2 (DOK2) is another member of the DOK family, predominantly expressed in hematopoietic cells. Like DOK1, DOK2 functions as a negative regulator of tyrosine kinase-mediated signaling pathways. It is essential for modulating immune cell activation, particularly in T cells, B cells, and macrophages. DOK2 interacts with various signaling proteins, such as SH2-containing phosphatase 2 (SHP2) and Ras-GAP, to dampen downstream signaling cascades. This regulation is vital for maintaining immune homeostasis and preventing overactivation that could lead to autoimmunity. DOK2 has also been identified as a tumor suppressor, with its inactivation or downregulation contributing to the pathogenesis of leukemias and other cancers. Its roles in both immune regulation and oncogenesis make it a key target for therapeutic research.