CST, 60265S, Osteopontin/SPP1 (F7E5E) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying osteopontin. Validated for Western Blotting,Immunohistochemistry (Paraffin),Immunofluorescence (Immunocytochemistry). Available in 2 sizes. Highly specific and rigorously validated in-house, Osteopontin/SPP1 (F7E5E) Rabbit Monoclonal Antibody (CST #60265) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunohistochemistry (Paraffin): 1:800 - 1:3200 Immunofluorescence (Immunocytochemistry): 1:1600 - 1:3200 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry) Specificity / Sensitivity Osteopontin/SPP1 (F7E5E) Rabbit Monoclonal Antibody recognizes endogenous levels of total osteopontin/SPP1 protein. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a recombinant protein specific to the N-terminus of human osteopontin/SPP1 protein. This antibody recognizes residues surrounding Gly158 of human osteopontin/SPP1 protein. Background Osteopontin is a highly phosphorylated secreted glycoprotein expressed in a variety of cell types. Osteopontin, encoded by the gene secreted phosphoprotein 1 (SPP1), was originally isolated and cloned from a rat osteosarcoma cell line (1). Osteopontin is a highly negatively charged protein that likely regulates extracellular matrix turnover and remodeling, both in bone and other tissue (2). Osteopontin also has three highly conserved receptor-binding domains, otherwise known as arginine-glycine-aspartic acid (RGD) domains. Binding of osteopontin to cell surface integrins likely activates cell signaling pathways that regulate cell proliferation, adhesion, invasion, migration, and fibrosis (3,4). Osteopontin may be regulated by posttranslational regulation, including phosphorylation, glycosylation, and proteolytic cleavage (5). Osteopontin is also linked to several human diseases. For example, cleaved osteopontin is higher in patients suffering with cirrhosis, a disease involving fibrosis of the liver (5). Its role in the brain is unclear, but SPP1 expression in microglia, the resident macrophages of the brain, is upregulated in mouse neurodegenerative disease models, including Alzheimer's disease (6). Osteopontin's role in disease likely involves its function as a key mediator of inflammatory responses (4). Alternate Names BNSP; Bone sialoprotein 1; bone sialoprotein I; BSPI; early T-lymphocyte activation 1; ETA-1; MGC110940; Nephropontin; OPN; Osteopontin; osteopontin/immunoglobulin alpha 1 heavy chain constant region fusion protein; OSTP; Secreted phosphoprotein 1; secreted phosphoprotein 1 (osteopontin, bone sialoprotein I, early T-lymphocyte activation 1); secreted phosphoprotein 1 variant 6; secreted phosphoprotein-1 (osteopontin, bone sialoprotein); SPP-1; SPP1; SPP1/CALPHA1 fusion; Urinary stone protein; Uropontin Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 60 Source/Isotype: Rabbit IgG