DATK32 antibody is specific for a combinatorial determinate of integrin alpha4beta7complex. Integrin alpha4beta7 is composed of a 150 kD (alpha4 or CD49d) and a 130 kD (beta7) heterodimer, also known as CD49d/beta7 or LPAM-1. Belonging to the Ig superfamily, it is found on the majority of peripheral lymphocytes and subsets of thymocytes and bone marrow cells (including mast cell progenitors). Integrin alpha4beta7 binds its ligands, VCAM-1 (CD106), MAdCAM-1 and fibronectin, and plays an important role in lymphocytes adhesion and the direction of migration of blood lymphocytes to the intestine and associated lymphoid tissues.