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  • SAB4200018 - Monoclonal Anti-Osteopontin antibody produced in mouse

SAB4200018 Sigma-Aldrich

Monoclonal Anti-Osteopontin antibody produced in mouse

~1.0 mg/mL, clone OPN46, purified immunoglobulin, buffered aqueous solution

Synonym: Anti-BNSP, Anti-Bone Sialoprotein 1, Anti-Early T Lymphocyte Activation Protein 1 (ETA1), Anti-OPN, Anti-SPP1, Anti-Secreted phosphoprotein 1, Anti-Urinary stone protein, Anti-Uropontin

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies to Adhesion Molecules and Related Proteins, Antibodies to Cell and Organelle Proteins,
conjugate   unconjugated
clone   OPN46, monoclonal
biological source   mouse
application(s)   western blot: 5-10 μg/mL using HepG2 cells extract
species reactivity   mouse, human, canine, rat, monkey
mol wt   antigen ~60 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   purified immunoglobulin
isotype   IgG1
antibody product type   primary antibodies
concentration   ~1.0 mg/mL
UniProt accession no.   P10451
Gene Information   human ... SPP1(6696)


General description

Monoclonal Anti-Osteopontin (mouse IgG1 isotype) is derived from the hybridoma OPN46 produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with a synthetic peptide corresponding to amino acids of human osteopontin. Osteopontin (OPN) is a secreted, integrin-binding glycophosphoprotein which serves as a cytokine and as an extracellular matrix molecule. It is produced by multiple tissues in the body and is most abundant in bone.


Monoclonal Anti-Osteopontin antibody produced in mouse may be used in immunoblotting.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Osteopontin (OPN) synthesized in cancer cells is essentail for growth, progression and metastasis of cancer. In tuomr cells OPN is highly expressed The structural features of OPN differ between normal and tumor cells Three osteopontin splice variant transcripts have been found to be expressed in invasive, but not in non-invasive breast tumor cell lines. Osteopontin-b lacks exon 5 and osteopontin-c lacks exon 4. The shortest splice variant, osteopontin-c may support breast tumor progression by conveying anchorage independence and inducing oxidoreductases expression. It was also suggested as a diagnostic and prognostic breast cancer marker.

Safety & Documentation

Safety Information

NONH for all modes of transport
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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