Overview

  • Product nameAnti-beta Amyloid antibodySee all beta Amyloid primary antibodies ...
  • Description
    Rabbit polyclonal to beta Amyloid
  • Tested applicationsWB, IHC-Fr, IHC-P, ELISAmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    Synthetic peptide:

    DAEFRHDSGYEVHH

    conjugated to KLH, corresponding to amino acids 1-14 of Human beta Amyloid

  • Positive control
    • whole tissue extracts from mouse brain IHC: human brain

Properties

  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage buffer0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, 0.01% Sodium Azide, pH 7.2
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesSterile filtered.
  • Clonality Polyclonal
  • IsotypeIgG
  • Research Areas

Applications

Our Abpromise guarantee covers the use of ab2539 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
WB 1/1000 - 1/5000. Predicted molecular weight: 87 kDa.
IHC-Fr Use at an assay dependent concentration.
IHC-P 1/100 - 1/200. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
ELISA 1/10000 - 1/50000.

Target

  • FunctionFunctions as a cell surface receptor and performs physiological functions on the surface of neurons relevant to neurite growth, neuronal adhesion and axonogenesis. 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. 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.
    Beta-amyloid 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. Beta-amyloid 42 is a more effective reductant than beta-amyloid 40. Beta-amyloid peptides bind to lipoproteins and apolipoproteins E and J in the CSF and to HDL particles in plasma, inhibiting metal-catalyzed oxidation of lipoproteins. Beta-APP42 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.
    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).
  • Tissue specificityExpressed in all fetal tissues examined with highest levels in brain, kidney, heart and spleen. Weak expression in liver. In adult brain, highest expression found in the frontal lobe of the cortex and in the anterior perisylvian cortex-opercular gyri. Moderate expression in the cerebellar cortex, the posterior perisylvian cortex-opercular gyri and the temporal associated cortex. Weak expression found in the striate, extra-striate and motor cortices. Expressed in cerebrospinal fluid, and plasma. Isoform APP695 is the predominant form in neuronal tissue, isoform APP751 and isoform APP770 are widely expressed in non-neuronal cells. Isoform APP751 is the most abundant form in T-lymphocytes. Appican is expressed in astrocytes.
  • Involvement in diseaseDefects in APP are the cause of Alzheimer disease type 1 (AD1) [MIM:104300]. AD1 is a familial early-onset form of Alzheimer disease. It can be associated with cerebral amyloid angiopathy. Alzheimer disease is a neurodegenerative disorder characterized by progressive dementia, loss of cognitive abilities, and deposition of fibrillar amyloid proteins as intraneuronal neurofibrillary tangles, extracellular amyloid plaques and vascular amyloid deposits. The major constituent of these plaques is the neurotoxic amyloid-beta-APP 40-42 peptide (s), derived proteolytically from the transmembrane precursor protein APP by sequential secretase processing. The cytotoxic C-terminal fragments (CTFs) and the caspase-cleaved products such as C31 derived from APP, are also implicated in neuronal death.
    Defects in APP are the cause of amyloidosis cerebroarterial Dutch type (AMYLCAD) [MIM:605714]; also known as hereditary cerebral hemorrhage with amyloidosis Dutch type (HCHWAD). AMYLCAD is a hereditary localized amyloidosis due to amyloid-beta A4 peptide(s) deposition in the cerebral vessels. Beta-APP40 is the predominant form of cerebrovascular amyloid. Amyloid is not found outside the nervous system. The principal clinical characteristics are recurrent cerebral and cerebellar hemorrhages, recurrent strokes, cerebral ischemia, cerebral infarction, and progressive mental deterioration. Onset of the disease is in middle age (44 to 60 years). Patients develop cerebral hemorrhage because of the severe cerebral amyloid angiopathy. Parenchymal amyloid deposits are rare and largely in the form of pre-amyloid lesions or diffuse plaque-like structures. They are Congo red negative and lack the dense amyloid cores commonly present in Alzheimer disease.
    Defects in APP are the cause of amyloidosis cerebroarterial Italian type (AMYLCAIT) [MIM:605714]. AMYLCAIT is a hereditary localized amyloidosis due to amyloid-beta A4 peptide(s) deposition in the cerebral vessels, resulting in cerebral amyloid angiopathy. Amyloid is not found outside the nervous system. It is a condition very similar to AMYLCAD, but the clinical course is less severe. Patients manifest mild cognitive decline, recurrent strokes, and epilepsy in some cases. There are extensive amyloid deposits in leptomeningeal and cortical vessels and, to a lesser extent, in the neuropil of the cerebral cortex, in the absence of neurofibrillary tangles.
    Defects in APP are the cause of amyloidosis cerebroarterial Iowa type (AMYLCAIW) [MIM:605714]. AMYLCAIW is a hereditary amyloidosis due to amyloid-beta A4 peptide(s) deposition. Patients have progressive aphasic dementia, leukoencephalopathy, and occipital calcifications.
  • Sequence similaritiesBelongs to the APP family.
    Contains 1 BPTI/Kunitz inhibitor domain.
  • DomainThe basolateral sorting signal (BaSS) is required for sorting of membrane proteins to the basolateral surface of epithelial cells.
    The NPXY sequence motif found in many tyrosine-phosphorylated proteins is required for the specific binding of the PID domain. However, additional amino acids either N- or C-terminal to the NPXY motif are often required for complete interaction. The PID domain-containing proteins which bind APP require the YENPTY motif for full interaction. These interactions are independent of phosphorylation on the terminal tyrosine residue. The NPXY site is also involved in clathrin-mediated endocytosis.
  • Post-translational
    modifications
    Proteolytically processed under normal cellular conditions. Cleavage either by alpha-secretase, beta-secretase or theta-secretase leads to generation and extracellular release of soluble APP peptides, S-APP-alpha and S-APP-beta, and the retention of corresponding membrane-anchored C-terminal fragments, C80, C83 and C99. Subsequent processing of C80 and C83 by gamma-secretase yields P3 peptides. This is the major secretory pathway and is non-amyloidogenic. Alternatively, presenilin/nicastrin-mediated gamma-secretase processing of C99 releases the amyloid beta proteins, amyloid-beta 40 (Abeta40) and amyloid-beta 42 (Abeta42), major components of amyloid plaques, and the cytotoxic C-terminal fragments, gamma-CTF(50), gamma-CTF(57) and gamma-CTF(59).
    Proteolytically cleaved by caspases during neuronal apoptosis. Cleavage at Asp-739 by either caspase-6, -8 or -9 results in the production of the neurotoxic C31 peptide and the increased production of beta-amyloid peptides.
    N- and O-glycosylated. O-linkage of chondroitin sulfate to the L-APP isoforms produces the APP proteoglycan core proteins, the appicans. The chondroitin sulfate chain of appicans contains 4-O-sulfated galactose in the linkage region and chondroitin sulfate E in the repeated disaccharide region.
    Phosphorylation in the C-terminal on tyrosine, threonine and serine residues is neuron-specific. Phosphorylation can affect APP processing, neuronal differentiation and interaction with other proteins. Phosphorylated on Thr-743 in neuronal cells by Cdc5 kinase and Mapk10, in dividing cells by Cdc2 kinase in a cell-cycle dependent manner with maximal levels at the G2/M phase and, in vitro, by GSK-3-beta. The Thr-743 phosphorylated form causes a conformational change which reduces binding of Fe65 family members. Phosphorylation on Tyr-757 is required for SHC binding. Phosphorylated in the extracellular domain by casein kinases on both soluble and membrane-bound APP. This phosphorylation is inhibited by heparin.
    Extracellular binding and reduction of copper, results in a corresponding oxidation of Cys-144 and Cys-158, and the formation of a disulfide bond. In vitro, the APP-Cu(+) complex in the presence of hydrogen peroxide results in an increased production of beta-amyloid-containing peptides.
    Trophic-factor deprivation triggers the cleavage of surface APP by beta-secretase to release sAPP-beta which is further cleaved to release an N-terminal fragment of APP (N-APP).
    Beta-amyloid peptides are degraded by IDE.
  • Cellular localizationMembrane. Membrane > clathrin-coated pit. Cell surface protein that rapidly becomes internalized via clathrin-coated pits. During maturation, the immature APP (N-glycosylated in the endoplasmic reticulum) moves to the Golgi complex where complete maturation occurs (O-glycosylated and sulfated). After alpha-secretase cleavage, soluble APP is released into the extracellular space and the C-terminal is internalized to endosomes and lysosomes. Some APP accumulates in secretory transport vesicles leaving the late Golgi compartment and returns to the cell surface. Gamma-CTF(59) peptide is located to both the cytoplasm and nuclei of neurons. It can be translocated to the nucleus through association with APBB1 (Fe65). Beta-APP42 associates with FRPL1 at the cell surface and the complex is then rapidly internalized. APP sorts to the basolateral surface in epithelial cells. During neuronal differentiation, the Thr-743 phosphorylated form is located mainly in growth cones, moderately in neurites and sparingly in the cell body. Casein kinase phosphorylation can occur either at the cell surface or within a post-Golgi compartment.
  • Information by UniProt
  • Database links
  • Alternative names
    • A4 antibody
    • A4 antibody
    • A4_HUMAN antibody
    • AAA antibody
    • AAA antibody
    • ABETA antibody
    • ABETA antibody
    • ABPP antibody
    • ABPP antibody
    • AD1 antibody
    • AICD-50 antibody
    • AICD-57 antibody
    • AICD-59 antibody
    • AID(50) antibody
    • AID(57) antibody
    • AID(59) antibody
    • Alzheimer disease amyloid protein antibody
    • Alzheimers Disease Amyloid Protein antibody
    • Amyloid B antibody
    • Amyloid Beta A4 Protein Precursor antibody
    • Amyloid Beta antibody
    • Amyloid intracellular domain 50 antibody
    • Amyloid intracellular domain 57 antibody
    • Amyloid intracellular domain 59 antibody
    • Amyloid of Aging and Alzheimer Disease antibody
    • APP antibody
    • APPI antibody
    • APPI antibody
    • B Amyloid antibody
    • Beta APP antibody
    • Beta-APP40 antibody
    • Beta-APP42 antibody
    • C31 antibody
    • Cerebral Vascular Amyloid Peptide antibody
    • CTFgamma antibody
    • CVAP antibody
    • CVAP antibody
    • Gamma-CTF(50) antibody
    • Gamma-CTF(57) antibody
    • Gamma-CTF(59) antibody
    • PN II antibody
    • PN-II antibody
    • PN2 antibody
    • PreA4 antibody
    • PreA4 antibody
    • Protease nexin II antibody
    • Protease nexin-II antibody
    • S-APP-alpha antibody
    • S-APP-beta antibody
    see all

Anti-beta Amyloid antibody images

  • ab2539 at 1/100 staining human brain tissue sections by IHC-P. The sections were formaldehyde fixed and a heat mediated antigen retrieval step was performed prior to incubation with ab2539. A biotinylated goat anti-rabbit IgG was used as the secondary.

    In this experimental set up, ab2539 is found to detect intracellular beta amyloid only and is negative for amyloid plaques.

    See Abreview

  • ab2539 staining beta Amyloid in 15 month old TASTPM mouse brain tissue section by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). Tissue underwent formaldehyde fixation before heat mediated antigen retrieval in citric acid and then blocking in 1% BSA for 10 minutes in RT was performed. The primary antibody was diluted 1/100 and incubated with sample for 2 hours in the dilution buffer containing TBS, BSA and azide. A Goat anti rabbit IgG was used as a secondary antibody at 1/300 dilution.

    See Abreview

  • Immunohistochemistical detection of beta Amyloid using antibody (ab2539) on TG APP23 mouse brain cortex frozen sections. Fixative: Formaldehyde Permeabilization: Yes - 0.1% Tween 20. Blocking step: 1% BSA for 30 mins @ 1 % @ rt°C. Primary Antibody used at 1/200 and incubated for 2 hours in TBS/BSA/Tween/azide. Secondary Antibody: anti rabbit IgG Alexa Fluor® 488 Dilution 1/1000. Fresh, snap-frozen cryosections of TG APP23 mice were fixed in 4% Formalin in PBS for 20 mins prior to treatment in 70% Formic acid AR (this Ab also works on such sections without acid pretreatment). This section was co-labelled using mouse anti GFAP ( visualising with anti Ms Alexa 594) to illustrate that astrocytes appear to be intimately associated with plaques. Positivity is confined to the extracellular plaques.

    See Abreview

  • Immunohistochemical analysis of murine brain tissue, staining beta Amyloid with ab2539.

    Tissue was blocked with donkey serum before incubating with primary antibody and a biotinylated donkey anti-rabbit secondary antibody. Staining was detected using DAB.

References for Anti-beta Amyloid antibody (ab2539)

This product has been referenced in:
  • Bernstein KE  et al. Angiotensin-converting enzyme overexpression in myelomonocytes prevents Alzheimer's-like cognitive decline. J Clin Invest 124:1000-12 (2014). IHC-P ; Mouse . Read more (PubMed: 24487585) »
  • Xu YH  et al. Multiple pathogenic proteins implicated in neuronopathic Gaucher disease mice. Hum Mol Genet N/A:N/A (2014). Mouse . Read more (PubMed: 24599400) »

See all 6 Publications for this product

Product Wall

Thank you for your enquiry. The antibody ab2539 is a polyclonal antibody raised in rabbit against the immunogen sequence listed on the datasheet. This means that it is a collection of antibodies which recognize different undefined epitopes, sequences o...

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Thank you for contacting us.
ab102265 is not suitable because ab2539 is a antibody with rabbit as host. You would need an anti rabbit antibody.
Please choose the following search on our website for secondary antibody selection;
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I will gladly check theidentity between the immunogen and the protein, however, I could not find the protein accession code. Would you mind sending me the code or the sequence soI canmake a prediction?

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Application Immunohistochemistry (Frozen sections)
Sample Mouse Tissue sections (Brain)
Specification Brain
Fixative Paraformaldehyde
Permeabilization Yes - Triton X100
Blocking step Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 20°C
Username

Abcam user community

Verified customer

Submitted Dec 05 2011

Thank you for contacting us and for pointing this out. We do not currently have any other information to indicate that ab2539 is suitable for use in WB. I have removed WB from the list of tested applications for this product.

Application Immunohistochemistry (Frozen sections)
Sample Mouse Tissue sections (Brain)
Specification Brain
Fixative Paraformaldehyde
Permeabilization No
Username

Abcam user community

Verified customer

Submitted Sep 13 2011

Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Mouse Tissue sections (15 month brain of TASTPM mouse)
Specification 15 month brain of TASTPM mouse
Fixative Formaldehyde
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: citric acid HIER
Permeabilization No
Blocking step BSA as blocking agent for 10 minute(s) · Concentration: 1% · Temperature: rt°C
Username

Mr. Carl Hobbs

Verified customer

Submitted Apr 21 2010

Application Immunohistochemistry (Frozen sections)
Sample Mouse Tissue sections (TG APP23 brain cortex)
Specification TG APP23 brain cortex
Fixative Formaldehyde
Permeabilization Yes - 0.1% Tween 20
Blocking step BSA as blocking agent for 30 minute(s) · Concentration: 1% · Temperature: rt°C
Username

Mr. Carl Hobbs

Verified customer

Submitted Apr 19 2010

Application Immunohistochemistry (Frozen sections)
Sample Human Tissue sections (Postmortem hippocampal brain sample from Alzheimer)
Specification Postmortem hippocampal brain sample from Alzheimer
Fixative Paraformaldehyde
Permeabilization Yes - Triton-X 100
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 20% · Temperature: 21°C
Username

Ms. Hasini Wijesuriya

Verified customer

Submitted Feb 12 2010

Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Human Tissue sections (brain)
Specification brain
Fixative Formaldehyde
Antigen retrieval step Heat mediated
Blocking step BSA as blocking agent for 10 minute(s) · Concentration: 1%
Username

Mr. Carl Hobbs

Verified customer

Submitted Apr 18 2007

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"