Laminin is the major glycoprotein component of basement membranes, and has a molecular weight of 850,000 daltons. This preparation of mouse Laminin was isolated from the Engelbreth-Holm-Swarm (EHS) sarcoma and is supplied at a concentration of 0.5-2.0 mg⁄ml. Supplied: 1 mg in 50 mM Tris-HCL (pH 7.4), 0.15 M NaCl