Anti-Osteopontin antibody (ab8448)
- Datasheet
- References (188)
- Protocols
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
Suitable for: IHC-P, ICC/IF, WB, IHC-Frmore details -
Species reactivity
Reacts with: Mouse, Rat, Human, Pig -
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
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.
| Application | Abreviews | Notes |
|---|---|---|
| IHC-P | 1/100 - 1/300. | |
| ICC/IF | 1/1000. | |
| WB | 1/1000. at this dilution, the antibody will strongly detect approximately 250 ng of OPN protein on a blot. | |
| IHC-Fr | 1/100 - 1/500. PubMed: 16128620 |
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
- Entrez Gene: 20750 Mouse
- Entrez Gene: 397087 Pig
- Entrez Gene: 25353 Rat
- Omim: 166490 Human
- SwissProt: P10451 Human
- SwissProt: P10923 Mouse
- SwissProt: P14287 Pig
see all -
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)Joshi, S. et al PLoS One. 2017 Nov 1;12(11):e0185009. doi: 10.1371/journal.pone.0185009. eCollection 2017. Reproduced under the Creative Commons license http://creativecommons.org/licenses/by/4.0/Immuno-histological staining of EG treated rat kidney
Formalin-fixed, paraffin-embedded rat kidney tissue stained for Osteopontin using ab8448 at 1/100 dilution in immunohistochemical analysis.
A) Control B) on Day 14 showing light staining of the tubular epithelial cells, shown by black arrows and C) on Day 28 showing strong staining of renal tubular epithelial cells as well as tubular contents (Black arrows), Magnification, X 40, Scale bar 100μm.
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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. -
Immunohistochemistry (Frozen sections) - Anti-Osteopontin antibody (ab8448)This image is a courtesy of Anonymous Abreviewab8448 staining Osteopontin in mouse developing skeleton tissue section by Immunohistochemistry (Frozen sections). Tissue samples were fixed with paraformaldehyde before permeabilization with 0.1% Triton and blocking with 20% serum was performed for 1 hour at RT. The sample was incubated with primary antibody (1/200) in 20%FBS/PBS for 16 hours at 40C. An Alexa Fluor®488-conjugated donkey polyclonal to rabbit IgG was used as secondary antibody at 1/200 dilution. In the image: Red Rhodamine Phalloidin (muscle), Blue DAPI (nuclei), Green Osteopontin.
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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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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Osteopontin antibody (ab8448)Image is courtesy of an Abreview submitted by Helder Fonsecaab8448 staining Osteopontin in Mouse femur tissue sections by Immunohistochemistry (IHC-P - paraformaldehyde-fixed, paraffin-embedded sections). Tissue was fixed with paraformaldehyde and blocked with 5% BSA for 1 hour at 35°C; antigen retrieval was by heat mediation in a citrate buffer. Samples were incubated with primary antibody (1/50) for 14 hours at 4°C. An Alkaline Phosphatase-conjugated Goat anti-rabbit IgG F(ab')2 polyclonal (1/100) was used as the secondary antibody.
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Other - 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
This product has been referenced in:
- 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). Read more (PubMed: 31215024) »
- Hou J et al. Role of integrin-linked kinase in the hypoxia-induced phenotypic transition of pulmonary artery smooth muscle cells: Implications for hypoxic pulmonary hypertension. Exp Cell Res 382:111476 (2019). Read more (PubMed: 31255599) »
