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Rabbit Polyclonal ORP-3 antibody. Suitable for IHC-P, WB, ICC/IF and reacts with Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human OSBPL3 aa 300-450.

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Images

Western blot - Anti-ORP-3 antibody (AB224212), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ORP-3 antibody (AB224212), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Anti-ORP-3 antibody (AB224212), expandable thumbnail

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.2
Preservative: 0.02% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine)

Form
Liquid
Clonality
Polyclonal

Immunogen

  • Recombinant Fragment Protein within Human OSBPL3 aa 300-450. The exact immunogen used to generate this antibody is proprietary information. Database link Q9H4L5

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PWBICC/IF
Human
Tested
Tested
Tested

Tested
Tested

Species
Human
Dilution info
1/50.00000 - 1/200.00000
Notes

Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

Tested
Tested

Species
Human
Dilution info
0.04000-0.40000 µg/mL
Notes

-

Tested
Tested

Species
Human
Dilution info
0.25000-2.00000 µg/mL
Notes

Fixation/Permeabilization: PFA/Triton X-100.

Associated Products

Select an associated product type

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Target data

Function

Phosphoinositide-binding protein which associates with both cell and endoplasmic reticulum (ER) membranes (PubMed:16143324). Can bind to the ER membrane protein VAPA and recruit VAPA to plasma membrane sites, thus linking these intracellular compartments (PubMed:25447204). The ORP3-VAPA complex stimulates RRAS signaling which in turn attenuates integrin beta-1 (ITGB1) activation at the cell surface (PubMed:18270267, PubMed:25447204). With VAPA, may regulate ER morphology (PubMed:16143324). Has a role in regulation of the actin cytoskeleton, cell polarity and cell adhesion (PubMed:18270267). Binds to phosphoinositides with preference for PI(3,4)P2 and PI(3,4,5)P3 (PubMed:16143324). Also binds 25-hydroxycholesterol and cholesterol (PubMed:17428193).

Alternative names

Recommended products

Rabbit Polyclonal ORP-3 antibody. Suitable for IHC-P, WB, ICC/IF and reacts with Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human OSBPL3 aa 300-450.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Polyclonal
Immunogen
  • Recombinant Fragment Protein within Human OSBPL3 aa 300-450. The exact immunogen used to generate this antibody is proprietary information. Database link Q9H4L5
Purification technique
Affinity purification Immunogen
Concentration
Loading...

Storage

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

Notes

Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.

If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.

Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

ORP-3 also known as Oxysterol-binding protein-related protein 3 is a member of the oxysterol-binding protein family. It has a mass of approximately 100 kDa and is broadly expressed in a variety of tissues including the liver and spleen. ORP-3 contains a pleckstrin homology domain and an oxysterol-binding domain enabling its interactions with lipids and membranes. These structural aspects allow ORP-3 to have a role in lipid transport and cellular signaling.

Biological function summary

The protein contributes significantly to the regulation of lipid metabolism and cellular homeostasis. It is part of a complex that modulates lipid transport and signaling pathways affecting cellular growth and proliferation. ORP-3's interaction with phosphoinositides is particularly important for maintaining membrane integrity and function. These activities can influence cell movement and positioning which have implications in cellular responses to external stimuli.

Pathways

The protein interacts with several key pathways including the phosphoinositide signaling pathway and the sterol regulatory element-binding protein (SREBP) pathway. In the phosphoinositide pathway ORP-3 interacts with proteins like phosphatidylinositol 4-phosphate to facilitate lipid transport processes. In the SREBP pathway it indirectly influences cholesterol and fatty acid metabolism. These pathways position ORP-3 as an integral component in lipid homeostasis and signaling networks.

Associated diseases and disorders

Disruptions in ORP-3 function link to lipid-related diseases such as atherosclerosis and certain cancers. In atherosclerosis ORP-3 contributes to cholesterol metabolism potentially affecting plaque formation. Its role in cancers involves its impact on cell proliferation and migration with connections to proteins such as Akt involved in cellular survival pathways. Understanding these associations helps in targeting ORP-3 for therapeutic interventions in these conditions.

Product promise

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In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

3 product images

  • Western blot - Anti-ORP-3 antibody (ab224212), expandable thumbnail

    Western blot - Anti-ORP-3 antibody (ab224212)

    All lanes: Western blot - Anti-ORP-3 antibody (ab224212) at 1/250 dilution

    All lanes: A431 (human epidermoid carcinoma cell line) cell lysate

    Developed using the ECL technique.

    Predicted band size: 101 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ORP-3 antibody (ab224212), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ORP-3 antibody (ab224212)

    Paraffin-embedded human urinary bladder tissue stained for ORP-3 using ab224212 at 1/50 dilution in immunohistochemical analysis.

  • Immunocytochemistry/ Immunofluorescence - Anti-ORP-3 antibody (ab224212), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-ORP-3 antibody (ab224212)

    PFA-fixed, Triton X-100 permeabilized A431 (human epidermoid carcinoma cell line) cells stained for ORP-3 (green) using ab224212 at 4 μg/ml in ICC/IF.

Downloads

Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

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