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Rabbit Recombinant Monoclonal Amyloid-beta precursor protein antibody. Carrier free. Suitable for IHC-P, Dot and reacts with Human, Synthetic peptide samples.

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Images

Key facts

Isotype

IgG

Host species

Rabbit

Storage buffer

pH: 7.2 - 7.4
Constituents: PBS

Form

Liquid

Clonality

Monoclonal

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Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PDot
Human
Tested
Expected
Synthetic peptide
Not recommended
Tested

Tested
Tested

Species

Human

Dilution info

-

Notes

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

Not recommended
Not recommended

Species

Synthetic peptide

Dilution info

-

Notes

-

Tested
Tested

Species

Synthetic peptide

Dilution info

-

Notes

-

Expected
Expected

Species

Human

Dilution info

Use at an assay dependent concentration.

Notes

-

Target data

Function

Functions as a cell surface receptor and performs physiological functions on the surface of neurons relevant to neurite growth, neuronal adhesion and axonogenesis. Interaction between APP molecules on neighboring cells promotes synaptogenesis (PubMed:25122912). Involved in cell mobility and transcription regulation through protein-protein interactions. Can promote transcription activation through binding to APBB1-KAT5 and inhibits Notch signaling through interaction with Numb. Couples to apoptosis-inducing pathways such as those mediated by G(O) and JIP. Inhibits G(o) alpha ATPase activity (By similarity). Acts as a kinesin I membrane receptor, mediating the axonal transport of beta-secretase and presenilin 1 (By similarity). By acting as a kinesin I membrane receptor, plays a role in axonal anterograde transport of cargo towards synapes in axons (PubMed:17062754, PubMed:23011729). Involved in copper homeostasis/oxidative stress through copper ion reduction. In vitro, copper-metallated APP induces neuronal death directly or is potentiated through Cu(2+)-mediated low-density lipoprotein oxidation. Can regulate neurite outgrowth through binding to components of the extracellular matrix such as heparin and collagen I and IV. The splice isoforms that contain the BPTI domain possess protease inhibitor activity. Induces a AGER-dependent pathway that involves activation of p38 MAPK, resulting in internalization of amyloid-beta peptide and leading to mitochondrial dysfunction in cultured cortical neurons. Provides Cu(2+) ions for GPC1 which are required for release of nitric oxide (NO) and subsequent degradation of the heparan sulfate chains on GPC1.Amyloid-beta peptides are lipophilic metal chelators with metal-reducing activity. Bind transient metals such as copper, zinc and iron. In vitro, can reduce Cu(2+) and Fe(3+) to Cu(+) and Fe(2+), respectively. Amyloid-beta protein 42 is a more effective reductant than amyloid-beta protein 40. Amyloid-beta peptides bind to lipoproteins and apolipoproteins E and J in the CSF and to HDL particles in plasma, inhibiting metal-catalyzed oxidation of lipoproteins. APP42-beta may activate mononuclear phagocytes in the brain and elicit inflammatory responses. Promotes both tau aggregation and TPK II-mediated phosphorylation. Interaction with overexpressed HADH2 leads to oxidative stress and neurotoxicity. Also binds GPC1 in lipid rafts.Appicans elicit adhesion of neural cells to the extracellular matrix and may regulate neurite outgrowth in the brain.The gamma-CTF peptides as well as the caspase-cleaved peptides, including C31, are potent enhancers of neuronal apoptosis.N-APP binds TNFRSF21 triggering caspase activation and degeneration of both neuronal cell bodies (via caspase-3) and axons (via caspase-6).

Alternative names

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Rabbit Recombinant Monoclonal Amyloid-beta precursor protein antibody. Carrier free. Suitable for IHC-P, Dot and reacts with Human, Synthetic peptide samples.

Alternative names

Key facts

Isotype

IgG

Form

Liquid

Clonality

Monoclonal

Carrier free

Yes

Clone number

mOC23

Purification technique

Affinity purification Protein A

Concentration
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Storage

Shipped at conditions

Blue Ice

Appropriate long-term storage conditions

+4°C

Storage information

Do Not Freeze

Notes

ab251427 is the carrier-free version of ab205340.

This antibody was developed as part of a collaboration between Abcam and Professor Charles Glabe, UC Irvine.

ab251427 (mOC23) recognizes an aggregation-dependent epitope of Aß that maps to a linear segment of Aß (residues 2-6, AEFRH) (Hatami et al 2014, PMID: 25281743). mOC23 stains a subset of plaques, but weakly stains the central core of cored plaques. mOC23 also stains misfolded or aggregated intraneuronal amyloid deposits (Hatami et al 2014, PMID: 25281743). Immunoreactivity on western blots is decreased by boiling the membrane.

For further information on the immunogen, please refer to Hatami et al. 2014, PMID: 25281743 and Kayed et al. 2007, PMID: 17897471.

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

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.

Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.

This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Supplementary info

Biological function summary

In the context of neuronal function beta amyloid is significant yet contentious. It is believed to play a role in synaptic transmission and may partake in homeostatic regulation. However the true physiological role still remains not well defined. Beta amyloid often self-assembles into oligomers and further into beta amyloid plaques which are part of a larger complex that includes various cellular and molecular components. The plaques contribute to neural pathway disruptions and may interfere with synaptic connections.

Activity summary

Beta amyloid also known as amyloid beta peptide is a small protein fragment composed of 36-43 amino acids. It typically has a mass of approximately 4 kDa. This peptide primarily emerges from the amyloid precursor protein (APP) through enzymatic actions by beta-secretase and gamma-secretase. Beta amyloid is commonly expressed in the brain particularly within the neuronal tissue. It is known for aggregating into insoluble fibrils leading to the formation of beta amyloid plaques. Researchers often study beta amyloid using tools like amyloid beta IHC and with specific antibodies like moab 2 and 2e9 which help in detecting its presence and distribution.

Pathways

Beta amyloid integrates into important cellular processes such as the amyloidogenic and non-amyloidogenic pathways. The amyloidogenic pathway involves the sequential cleavage of APP by beta and gamma secretases leading to beta amyloid release which can aggregate. In contrast the non-amyloidogenic pathway mediated by alpha-secretase precludes beta amyloid formation. Proteins such as presenilin-1 and nicastrin are closely tied to beta amyloid formation due to their roles in the gamma-secretase complex.

Associated diseases and disorders

Beta amyloid is primarily associated with Alzheimer's disease where its accumulations form characteristic amyloid plaques observed in patients' brains. These plaques are implicated in neuronal damage and cognitive decline. Beyond Alzheimer's beta amyloid may also connect to cerebral amyloid angiopathy a condition marked by amyloid deposits in the blood vessels of the brain leading to increased risk of hemorrhagic stroke. Recent studies suggest other proteins such as tau link closely with beta amyloid pathology in Alzheimer's promoting neurofibrillary tangles and synaptic degeneration.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

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

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427)

    This data was developed using ab205340, the same antibody clone in a different buffer formulation.IHC image of beta Amyloid staining in Human Brain Alzheimer formalin fixed paraffin embedded tissue section*, performed on a Leica Bond™ system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab205340, 0.1μg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times. *Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

  • Dot Blot - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427), expandable thumbnail

    Dot Blot - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427)

    This data was developed using ab205340, the same antibody clone in a different buffer formulation.Dot blot analysis of beta Amyloid labeled with ab205340 at 1/6000 dilution.

    Lane 1: beta Amyloid (Aβ) 1-40;

    Lane 2: beta Amyloid (Aβ) 1-42.

    Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (ab97051) at 1/30000 was used as secondary antibody.

    Blocking/Dilution buffer: 5% NFDM/TBST.

    Exposure time: 30 seconds.

    Note: Antibody reactivity was assessed using a dot blot, which is a non-quantitative method that maintains the native conformation of beta Amyloid. beta Amyloid 1-40 and 1-42 peptides underwent the following aggregation conditions before being spotted onto a nitrocellulose membrane and detected using ab205340:

    Monomers: 0.3 mg of beta Amyloid peptide was dissolved in 30 µl 100 mM NaOH and incubated at room temperature for 10 minutes. It was then diluted with 970 µl of 1% SDS and boiled for five minutes.

    Oligomers: 0.3 mg of beta Amyloid peptide was dissolved in 30 µl 100 mM NaOH and incubated at room temperature for 10 minutes. It was then diluted with 970 µl of 10 mM phosphate buffer pH 7.4 containing 0.02% sodium azide and incubated at room temperature for four days.

    Fibrils: 0.3 mg of beta Amyloid peptide was dissolved in 1 ml 50% hexafluoroisopropanol (HFIP) with 0.02% sodium azide. It was then stirred constantly for nine days; the first seven with a cap on and the final two with the cap removed to allow evaporation of the HFIP. Fibrils were then sedimented at 20,000 rpm in a microcentrifuge for 20 minutes and resuspended in 1 ml of PBS + 0.02% sodium azide.

  • Dot Blot - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427), expandable thumbnail

    Dot Blot - Anti-beta Amyloid antibody [mOC23] - BSA and Azide free (ab251427)

    This data was developed using ab205340, the same antibody clone in a different buffer formulation.Negative control (secondary ab only) Dot blot analysis of beta Amyloid.

    Lane 1: beta Amyloid (Aβ) 1-40;

    Lane 2: beta Amyloid (Aβ) 1-42.

    Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (ab97051) at 1/30000 was used as secondary antibody.

    Blocking/Dilution buffer: 5% NFDM/TBST.

    Exposure time: 30 seconds.

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Product protocols

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

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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