Abcam, ab218237, Anti-Osteopontin antibody [EPR21138]

Size: 20µL / 100µL / 1mL
Anti-Osteopontin antibody [EPR21138] (ab218237) is a rabbit monoclonal antibody detecting Osteopontin in Western Blot, IHC-P, ICC/IF . Suitable for Mouse . - Biophysical QC for unrivalled batch-batch consistency - Over 10 publications
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR21138,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse,
Applications:IHC-P, WB, ICC/IFSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.,
Specificity:This antibody is not recommended for use in WB with mouse tissue samples.Osteopontin is a secretory protein, to allow the detection of Osteopontin in cell lysate, we suggest treating cells with BFA which inhibits protein secretion.

Product details:
What is this antibody validated in?
Anti-Osteopontin antibody [EPR21138] (ab218237) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Mouse samples.
What is the molecular weight of Osteopontin?
Anti-Osteopontin [EPR21138] (ab218237) specifically detects a band for Osteopontin (UniProt: P10923) at a molecular weight of 35kDa.
Trusted by the scientific community
Anti-Osteopontin [EPR21138] (ab218237) was first used in a scientific publication in 2018 and has been cited over 10 times in peer-reviewed journals.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
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Other related products
We have a range of other formats of antibody clone [EPR21138] also available for your convenience: ab218237, Carrier free -
ab229854
, Alexa Fluor® 488 -
ab319122
, Alexa Fluor® 647 -
ab323498
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Osteopontin also known as OPN or secreted phosphoprotein 1 (SPP1) is a glycoprotein with a molecular weight of approximately 44 to 75 kDa depending on its post-translational modifications. Osteopontin is characteristically expressed in bone but is also present in various body tissues including kidney liver and immune system cells. This multifunctional protein interacts with cell surface receptors such as integrins and CD44 playing an important role in cell signaling and extracellular matrix interactions. Researchers often study it using osteopontin western blot or osteopontin ELISA kit to understand its expression patterns and roles.
Biological function summary
Osteopontin affects cell adhesion migration and survival. It does not form part of a known large complex but interacts closely with its integrin receptors. Osteopontin modulates immune responses and aids in bone remodeling by affecting osteoclast and osteoblast functions. It is also influential in inflammation processes where it orchestrates the recruitment and activation of macrophages. The osteopontin function is significant in both physiological processes and pathologies marking it as an important protein to study in numerous biological contexts.
Pathways
Osteopontin is integral to both the bone remodeling and immune response pathways. It collaborates with proteins like osteocalcin and matrix metalloproteinases within these processes. In the bone remodeling pathway osteopontin mediates communication between osteoclasts and osteoblasts impacting bone resorption and formation. In the immune response pathway it coordinates with cytokines such as interleukin-6 to modulate immune cell activities. Its roles in these pathways indicate its multifunctional nature and its impact across different biological systems.
Osteopontin links to cancer and cardiovascular diseases. It facilitates tumor progression and metastasis by interacting with proteins such as vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9). In cardiovascular diseases osteopontin influences atherosclerosis development through interactions with inflammatory cytokines and contributes to plaque stability. These disease associations highlight the importance of osteopontin as both a therapeutic target and a biomarker for disease progression and prognosis.