Biotin anti-β-Amyloid, 1-40 Antibody (Previously Covance catalog# SIG-39141)

Pricing & Availability
11A50-B10 (See other available formats)
Regulatory Status
Other Names
AAA, ABETA, ABPP, AD1, APPI, CTFgamma, CVAP, PN-II, PN2, Amyloid beta A4 protein, preA4, protease nexin-II, peptidase nexin-II, beta-amyloid peptide, alzheimer disease amyloid protein, cerebral vascular amyloid peptide, APP, Amyloid Precursor Protein
Signet Catalog# 9141-02
Signet Catalog# 9141-05
Signet Catalog# 9141-10
Covance Catalog# SIG-39141
Mouse IgG1, κ
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Product Citations
Cat # Size Price Quantity Check Availability Save
805404 200 µL 476€
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Amyloid beta (Aβ or Amyloid beta) denotes peptides of 36-43 amino acids in length that are crucially involved in Alzheimer's disease as the main component of the amyloid plaques found in the brains of Alzheimer patients. The peptides result from the amyloid precursor protein (APP), which is cut by certain enzymes to yield Aβ. Aβ molecules can aggregate to form oligomers (known as "seeds") which are believed to be able to induce other Aβ molecules to also take the misfolded oligomeric form, leading to a chain reaction akin to a prion infection. The seeds or the resulting amyloid plaques are toxic to nerve cells. The other protein implicated in Alzheimer's disease, tau protein, also forms such prion-like misfolded oligomers, and there is some evidence that misfolded Aβ can induce tau to misfold.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Antibody Type
Host Species
Phosphate-buffered solution; no preservatives or carrier proteins.
The antibody was purified by affinity chromatography.
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Please note the storage condition for this antibody has been changed from -20°C to between 2°C and 8°C. You can also check your vial or your CoA to find the most accurate storage condition for this antibody.


Recommended Usage

Each lot of this antibody is quality control tested by ELISA assay.

The optimal working dilution should be determined for each specific assay condition.

Application Notes

Clone 11A50-B10 is reactive to the C-terminus of beta amyloid and is specific for the isoform ending at the 40th amino acid.

Application References

(PubMed link indicates BioLegend citation)
  1. Watts JC, et al. 2014. Proc. Natl. Sci. USA 28:10323. (IHC-P) PubMed
  2. Diomede L, et al. 2014. Neurobiol. Dis. 62:521. (Dot Plot) PubMed
  3. Watanabe H, et al. 2012. J Neurosci. 15:5085. (ELISA) PubMed
  4. Portelius E, et al. 2006. J. Proteome Res. 4:1010. (IP)
  5. Vingtdeux V, et al. 2011. FASEB J. 25:219. (ELISA) PubMed
  6. Ohmi K, et al. 2011. PLoS One 11:e27461. (IHC-Other) PubMed
Product Citations
  1. Watts J, et al. 2014. Proc Natl Acad Sci U S A. 111:10323-10328. PubMed
  2. Wu Y, et al. 2019. Nat Commun. 10:58. PubMed
AB_2564974 (BioLegend Cat. No. 805404)

Antigen Details

Biology Area
Cell Biology, Neurodegeneration, Neuroscience, Protein Misfolding and Aggregation
Molecular Family
Gene ID
351 View all products for this Gene ID
View information about beta-Amyloid 1-40 on

Related FAQs

How many biotin molecules are per antibody structure?
We don't routinely measure the number of biotins with our antibody products but the number of biotin molecules range from 3-6 molecules per antibody.

Other Formats

View All β-Amyloid, 1-40 Reagents Request Custom Conjugation
Description Clone Applications
Biotin anti-β-Amyloid, 1-40 11A50-B10 ELISA,WB,IHC,IP
HRP anti-β-Amyloid, 1-40 11A50-B10 IHC-P,Dot Blot,ELISA,IP
Purified anti-β-Amyloid, 1-40 11A50-B10 IHC-P,Dot Blot,ELISA
Go To Top Version: 6    Revision Date: 03/16/2016

For Research Use Only. Not for diagnostic or therapeutic use.


This product is supplied subject to the terms and conditions, including the limited license, located at ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.


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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.


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