Skip to Content
Merck
All Photos(1)

Documents

A9810

Sigma-Aldrich

Amyloid β Protein Fragment 1-42

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C203H311N55O60S
CAS Number:
Molecular Weight:
4514.04
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.32

Assay

≥95% (HPLC)

Quality Level

form

powder

UniProt accession no.

storage temp.

−20°C

Gene Information

human ... APP(351)

Amino Acid Sequence

Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-Ile-Ala

General description

Amyloid β Protein is produced from amyloid-β precursor protein (APP). It consists of two C terminal variants, such as a long tailed Aβ 1-42 and a short tailed Aβ 1-40. APP is located on human chromosome 21q21.3.

Application

Amyloid β Protein Fragment 1-42 has been used:
  • for the preparation of Aβ 1-42 oligomer
  • for western blot analysis
  • for the interference test of immunomagnetic reduction (IMR) plasma Aβ42 assay
  • to study the effects of resveratrol on Aβ 1-42-induced impairment of spatial learning, memory and synaptic plasticity
  • to investigate the effect of Aβ in epithelial cell culture

Biochem/physiol Actions

Amyloid β Protein Fragment 1-42 (Aβ 1-42) has antioxidant and neuroprotective properties. Accumulation of amyloid β Protein is associated with Alzheimer′s disease (AD) and Down Syndrome. Aβ 1-42 regulates cholesterol transport and may function as a transcription factor. It may possess anti-inflammatory and antimicrobial properties.
The predominant fragment of amyloid β-protein found in the brains of patients with Alzheimer′s disease and Down′s syndrome.

related product

Product No.
Description
Pricing

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Magnesium Ions Inhibit the Expression of Tumor Necrosis Factor alpha and the Activity of gamma-secretase in a beta-amyloid Protein-dependent Mechanism in APP/PS1 Transgenic Mice
Yu X, et al.
Frontiers in Molecular Neuroscience, 11 (2018)
The role of Abeta circRNA in Alzheimer? s disease: alternative mechanism of Abeta biogenesis from Abeta circRNA translation
Mo D, et al.
bioRxiv, 260968-260968 (2018)
J T Jarrett et al.
Biochemistry, 32(18), 4693-4697 (1993-05-11)
Several variants of the beta amyloid protein, differing only at their carboxy terminus (beta 1-39, beta 1-40, beta 1-42, and beta 1-43), have been identified as the major components of the cerebral amyloid deposits which are characteristic of Alzheimer's disease.
Functional activity of the novel Alzheimer's amyloid beta-peptide interacting domain (AbetaID) in the APP and BACE1 promoter sequences and implications in activating apoptotic genes and in amyloidogenesis
Bailey JA, et al.
Gene, 488(1), 13-22 (2011)
A novel function of monomeric amyloid beta-protein serving as an antioxidant molecule against metal-induced oxidative damage
Zou K, et al.
The Journal of Neuroscience, 22(12), 4833-4841 (2002)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service