Merck, A3854-200UL, Anti-β-Actin−Peroxidase antibody, Mouse monoclonal

Actin is one of the most conserved eukaryotic proteins and is expressed in mammals and birds as at least six isoforms. There are three α-actins (skeletal, cardiac, and smooth muscle), one β-actin (β-nonmuscle), and two γ-actins (γ-smooth muscle and γ-non muscle). Actin isoforms show >90% overall sequence homology, but only 50–60% homology in their NH2-terminal residues. ACTB (actin β) gene codes for β-actin. It is a cytoskeletal housekeeping protein. It is present in the cytoplasm. The ACTB gene is located on human chromosome 7p22.1. Mouse monoclonal anti-β-actin-peroxidase antibody specifically localizes β-actin in a wide variety of tissues and species using immunoblotting (42kDa). The antibody cross-reacts with β-Actin expressed in cells of human, bovine, sheep, pig, rabbit, cat, dog, mouse, rat, guinea pig, chicken, carp, and Hirudo medicinalis (leech) tissues, but not in Dictyostelium discoideum amoebae or Drosophila.