Anti-Integrin alpha 4, IN1 (CD49d, CDw49d, Integrin alpha IV, IA4, ITGA4, LPAM23, MGC90518, Very Lat

The integrin alpha 4 (also known as CD49d and ITGA4) belongs to the integrin alpha chain family of proteins. Integrins are heterodimeric integral membrane proteins composed of an alpha and beta chains. Alpha 4 chain associates with either beta 1 or beta 7 chain. It has been demonstrated that the putative ligand-binding sites of both integrin alpha 4 beta 1 and alpha 4 beta 7 is located on the alpha 4 chain. These ligands included Madcam, VCAM, and fibronectin. Madcam is known as the principal ligand for integrin alpha 4 beta 7. Recently it was also demonstrated that HIV-1 envelope can mimic Madcam by binding to and signaling though integrin alpha 4 beta 1, the gut mucosal homing receptor for peripheral T cells. Despite its predicted molecular weight, Integrin alpha 4 will often run at higher molecular weight in SDS-PAGE. At least two isoforms are known to exist. Applications: Suitable for use in Elisa and Western Blot. Other applications not tested. Recommended Dilution: Western Blot: 0.5-1ug/ml, Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.