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Osteopontin Antibody (100-401-404) in IHC
Rabbit anti-Osteopontin was used at a 1:100-1:300 dilution to detect osteopontin by immunohistochemistry. Osteopontin is a normal component of elastic fibers in the breast (shown heavily stained in this section of human breast tumor cells). There is also weak staining of the extracellular matrix. Osteopontin is not expressed in breast tumor cells, and there is no staining of the breast cells in this section... View More
Product Details
100-401-404
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Dog,
Human,
Mouse,
Pig,
Rat
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
This whole rabbit serum was prepared by repeated immunizations with a synthetic peptide, from the human osteopontin protein, conjugated to KLH using maleimide.
Conjugate
Form
Liquid
Concentration
95 mg/mL
Storage buffer
0.02M potassium phosphate/whole serum, pH 7.2, with 0.15M NaCl
Contains
0.01% sodium azide
Storage conditions
-20°C, Avoid Freeze/Thaw Cycles
Shipping conditions
Ambient (domestic); Wet ice (international)
Product Specific Information
Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
Osteopontin is directed against human osteopontin. The antibody recognizes the full-length osteopontin protein (which runs at 66 kDa on westerns), as well as the C-terminal fragments of both thrombin and MMP-cleaved OPN. The 32 kDa MMP-cleaved C-fragment is recognized, but not the 40 kDa N-terminal fragment. Reactivity is reported to occur with osteopontin from swine, dog, mouse and rat.
Target Information
Osteopontin is an arginine-glycine-aspartic acid (RGD)-containing glycoprotein that interacts with integrins and CD44 as major receptors. It is a multifunctional protein involved in bone mineralization, cell adhesion, cell migration, chronic inflammatory disease and transformation. Proteolytic cleavage by thrombin and matrix metalloproteinases close to the integrin-binding Arg-Gly-Asp sequence modulates the function of OPN and its integrin binding properties. Thrombin-cleaved fragments of Osteopontin are overexpressed in malignant glial tumors and provide a molecular niche with survival advantage and provide a novel substrate for plasmin and cathepsin D.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: 2AR; 44 kDa bone phosphoprotein; Bone sialoprotein 1; Bone sialoprotein 1 (BSPI/BSP1); Calcium oxalate crystal growth inhibitor protein; CALPHA1 fusion; Early T lymphocyte activation 1 (ETA1); early T-lymphocyte activation 1; Early T-lymphocyte activation 1 protein; HGNC:11255; immunoglobulin alpha 1 heavy chain constant region fusion protein; MGC110940; Minopontin; Nephropontin; Osteopontin; osteopontin-like protein; osteopontin/immunoglobulin alpha 1 heavy chain constant region fusion protein; Secreted phosphoprotein 1; secreted phosphoprotein 1 (osteopontin bone sialoprotein I early T lymphocyte activation 1); secreted phosphoprotein 1 (osteopontin, bone sialoprotein I, early T-lymphocyte activation 1); Secreted phosphoprotein 1 (SPP1); secreted phosphoprotein 1 variant 6; Sialoprotein (osteopontin); SPP-1; SPP1/CALPHA1 fusion; urinar; Urinary stone protein; Uropontin
Gene Aliases: 2AR; 2b7; Apl-1; BNSP; Bsp; BSPI; Eta; ETA-1; OP; OPN; Opnl; OSP; PSEC0156; Ric; Spp-1; SPP1
UniProt ID: (Human) P10451, (Pig) P14287, (Mouse) P10923, (Rat) P08721
Entrez Gene ID: (Human) 6696, (Pig) 397087, (Dog) 478471, (Mouse) 20750, (Rat) 25353
ossification
osteoblast differentiation
cell adhesion
response to organic substance
positive regulation of cell-substrate adhesion
neutrophil chemotaxis
biomineral tissue development
response to vitamin D
negative regulation of apoptotic process
positive regulation of bone resorption
response to steroid hormone
cellular response to fluid shear stress
inflammatory response
embryo implantation
extracellular matrix disassembly
extracellular matrix organization
decidualization
negative regulation of collateral sprouting of intact axon in response to injury
cell differentiation
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