Anti-Osteopontin antibody (ab8448)
Key features and details
- Rabbit polyclonal to Osteopontin
- Suitable for: IHC-P, ICC/IF, WB
- Reacts with: Human
- Isotype: IgG
Get better batch-to-batch reproducibility with a recombinant antibody
- Research with confidence – consistent and reproducible results with every batch
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- Success from the first experiment – confirmed specificity through extensive validation
- Ethical standards compliant – production is animal-free
Overview
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Product name
Anti-Osteopontin antibody
See all Osteopontin primary antibodies -
Description
Rabbit polyclonal to Osteopontin -
Host species
Rabbit -
Tested Applications & Species
See all applications and species dataApplication Species ICC/IF HumanIHC-P HumanWB Human
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Immunogen
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles. -
Storage buffer
Preservative: 0.1% Sodium azide
Constituents: 0.42% Potassium phosphate, 0.87% Sodium chloride -
Concentration information loading... -
Purity
Whole antiserum -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Immunohistochemistry kits
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Isotype control
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Recombinant Protein
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Related Products
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab8448 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Guaranteed
Tested applications are guaranteed to work and covered by our Abpromise guarantee.
Predicted
Predicted to work for this combination of applications and species but not guaranteed.
Incompatible
Does not work for this combination of applications and species.
| Application | Species |
|---|---|
| ICC/IF |
Human
|
| IHC-P |
Human
|
| WB |
Human
|
| Application | Abreviews | Notes |
|---|---|---|
| IHC-P | (5) |
1/100 - 1/300.
|
| ICC/IF |
1/1000.
|
|
| WB | (5) |
1/1000. at this dilution, the antibody will strongly detect approximately 250 ng of OPN protein on a blot.
|
| Notes |
|---|
|
IHC-P
1/100 - 1/300. |
|
ICC/IF
1/1000. |
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WB
1/1000. at this dilution, the antibody will strongly detect approximately 250 ng of OPN protein on a blot. |
Target
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Function
Binds tightly to hydroxyapatite. Appears to form an integral part of the mineralized matrix. Probably important to cell-matrix interaction.
Acts as a cytokine involved in enhancing production of interferon-gamma and interleukin-12 and reducing production of interleukin-10 and is essential in the pathway that leads to type I immunity. -
Tissue specificity
Bone. Found in plasma. -
Sequence similarities
Belongs to the osteopontin family. -
Post-translational
modificationsExtensively phosphorylated on clustered serine residues.
N- and O-glycosylated.
Phosphorylation sites are present in the extracelllular medium. -
Cellular localization
Secreted. - Information by UniProt
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Database links
- Entrez Gene: 6696 Human
- Omim: 166490 Human
- SwissProt: P10451 Human
- Unigene: 313 Human
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Alternative names
- BNSP antibody
- Bone sialoprotein 1 antibody
- Bone sialoprotein I antibody
see all
Images
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Osteopontin antibody (ab8448)
Human Breast tumour section. Osteopontin is a normal component of elastic fibers in the breast (shown heavily stained in this section). There is also weak staining of the extracellular matrix. Osteopontin is not believed to be expressed inside breast tumour cells, and there is no staining in the intracellular region of the breast cells in this section.
Osteopontin antibody (ab8448) used at 1:100-1:300. No antigen retrieval is required.
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Western blot - Anti-Osteopontin antibody (ab8448)All lanes : Anti-Osteopontin antibody (ab8448) at 1/1000 dilution
Lane 2 : Human Osteopontin
Lane 3 : MMP-cleaved Human Osteopontin
Lysates/proteins at 0.25 µg per lane.
Secondary
All lanes : HRP-conjugated Goat anti-Rabbit IgG at 1/10000 dilution
The osteopontin antibody (ab8448) is used at 1:1000 dilution on a blot with 250ng human osteopontin (lane 2)and MMP-cleaved osteopontin (lane 3 -
Immunocytochemistry/ Immunofluorescence - Anti-Osteopontin antibody (ab8448)ICC/IF image of ab8448 stained MCF7 cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab8448, 1/1000 dilution) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. -
Cellular activity - Anti-Osteopontin antibody (ab8448)This image is courtesy of Agnihotri et al, JBC 2001OPN is cleaved by MMP to yield 2 fragments, which migrate at 40kD(N terminal) and 32kD (C terminal). The C terminal fragment can undergo further cleavage by both of these MMPs (see Agnihotri et al, JBC 2001 for further details). The epitope recognised by ab8448 is shown in violet. This antibody detects the full length OPN and the 32kD fragment. It does not recognise the 40kD fragment.
Protocols
References (235)
ab8448 has been referenced in 235 publications.
- Li L et al. XIST/miR-376c-5p/OPN axis modulates the influence of proinflammatory M1 macrophages on osteoarthritis chondrocyte apoptosis. J Cell Physiol 235:281-293 (2020). PubMed: 31215024
- Geng Y et al. Overexpression of mechanical sensitive miR-337-3p alleviates ectopic ossification in rat tendinopathy model via targeting IRS1 and Nox4 of tendon-derived stem cells. J Mol Cell Biol 12:305-317 (2020). PubMed: 31065679
- Li P et al. Loss of PARP-1 attenuates diabetic arteriosclerotic calcification via Stat1/Runx2 axis. Cell Death Dis 11:22 (2020). PubMed: 31924749
- Marycz K et al. Iron oxides nanoparticles (IOs) exposed to magnetic field promote expression of osteogenic markers in osteoblasts through integrin alpha-3 (INTa-3) activation, inhibits osteoclasts activity and exerts anti-inflammatory action. J Nanobiotechnology 18:33 (2020). PubMed: 32070362
- Gadalla D & Goldstein AS Improving the Osteogenicity of PCL Fiber Substrates by Surface-Immobilization of Bone Morphogenic Protein-2. Ann Biomed Eng 48:1006-1015 (2020). PubMed: 31115719
Customer reviews and Q&As
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