CD49d (APC)

CD49d is a 150kD alpha integrin chain known as alpha4 integrin or VLA-4 alpha chain. It forms a heterodimer with either integrin beta1 (alpha4beta1, VLA-4) or beta7 (alpha4beta7). CD49d is expressed broadly on T lymphocytes, B lymphocytes, monocytes, thymocytes, eosinophils, basophils, mast cells, NK cells, dendritic cells, and some non-hematopoietic cells, but not on normal red blood cells, platelets or neutrophils. VLA-4 binds to VCAM-1 (CD106) and fibronectin. alpha4beta7 is the receptor for VCAM-1 and MAdCAM-1. CD49d participates in mononuclear cell trafficking to endothelial sites of inflammation and has roles in cell-cell interactions and cell adhesion to extracellular matrices. CD49d is involved in lymphocyte migration, T cell activation, and hematopoietic stem cell differentiation. CD49d is a marker to isolate pure populations of Treg cells due to its absence on Foxp3+ cells.||Applications: |Suitable for use in Flow Cytometry. Other applications not tested.||Recommended Dilution:|Flow Cytometry: 2ul or 5ul of antibody/test (million cells in 100ul staining volume or per 100ul of whole blood).|Optimal dilutions to be determined by the researcher.||Storage and Stability:|Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: APC conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.