

Anti-ACTR-IB ACVR1B Antibody, catalog B2020550, is an antibody to ACVR1B (ALK4), the type I activin receptor that phosphorylates SMAD2/3, with typical uses including research immunoassays such as Western blot, immunohistochemistry, immunofluorescence, and ELISA. Available from MBP, a registered vendor at leading US research institutions.