CD49b (Integrin alpha 2) Monoclonal Antibody (DX5), PerCP-eFluor™ 710, eBioscience™, Invitrogen™

Description

• The DX5 MAb reacts with CD49b, an antigen expressed on a majority of mouse natural killer cells and a subset of T cells
• DX5 reacts with all strains of mouse tested including the most commonly used strains, BALB/c, C57BL/6, C3H, CBA, DBA, AKR, SJL and 129
• Simultaneous staining of C57BL/6 spleen cells with anti-NK1.1 mAb (PK136) and DX5 reveals coexpression of both markers by a majority of cells as well as presence of small populations of DX5+PK136- and DX5-PK136+ cells
• CD49b (Integrin alpha 2, Integrin alpha 2 chain, VLA-2 alpha chain, HM alpha 2) is a member of the integrin family
• It is a glycoprotein with molecular weight of 150 kD, and it complexes with CD29 (Integrin beta 1) to form the heterodimeric integrin VLA-2 (integrin alpha 2 beta 1, or GPIa/IIa) complex
• VLA-2 is an extracellular receptor for laminin, collagen, and fibronectin, and interaction with its ligands results in the activation of intracellular signaling pathways
• It has reported roles in VEGF-induced angiogenesis in vivo, as well as adhesion and lymphocyte activation
• CD49b is expressed by NK cells, NK-T cells, monocytes, platelets, and epithelial cells
• It is also expressed on adaptive immune cells such as T and B cells, specifically on a subset of CD4+ T cells in the spleen, on intraepithelial and lamina propria lymphocytes in the intestine, as well as on a population of peripheral CD4+ type 1 T regulatory (Tr1) cells that co-express LAG-3.