Calpain 1 Mouse monoclonal Antibody IgG1
Fig1: Immunohistochemical analysis of paraffin-embedded rat testis tissue using anti-Calpain 1 antibody. Counter stained with hematoxylin.
Fig2: Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using anti-Calpain 1 antibody. Counter stained with hematoxylin.
Fig3: Immunohistochemical analysis of paraffin-embedded human spleen tissue using anti-Calpain 1 antibody. Counter stained with hematoxylin.
Host Species; Species ReactivityMouse; Human, Rat
Purification; FormulationProG purified.; 1*TBS (pH7.4), 0.5%BSA, 50%Glycerol. Preservative: 0.05% Sodium Azide.; Liquid form.
ALTnamesCalpain-1 catalytic subunit, Calcium-activated neutral proteinase 1, Calpain mu-type, Calpain-1 large subunit, Cell proliferation-inducing gene 30 protein, Micromolar-calpain
BackgroundCalpain 1 (large subunit), also designated µ-calpain, is an intracellular calcium-dependent protease that cleaves cyto-skeletal and submembranous proteins. Calpains are nonlysosomal, calcium-activated intracellular cysteine proteases. Calpains mediate specific Ca2+-dependent processes including cell fusion, mitosis and meiosis. Calpains are heterodimers of a small regulatory subunit and one of three large catalytic subunits, designated Calpain 1 (large subunit), Calpain 2 and Calpain p94. Calpastatin regulates Calpain by inhibiting both the proteolytic activity of Calpain and its binding to membranes. Calpastatin exists in two types, tissue type and erythrocyte type, resulting from both alternative splicing and proteolytic processing. Calpain-1 co-localizes with human leukocyte antigen-DR (HLA-DR) on activated microglia in the aging brain. Calpain influences the process of spermatogenesis and the events preceding fertilization, such as the acrosome reaction.(EM1801-02)