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A9810

Sigma-Aldrich

Amyloid β Protein Fragment 1-42

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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’.

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Function of beta-amyloid in cholesterol transport: a lead to neurotoxicity
Yao ZX and Papadopoulos V
Faseb Journal, 16(12), 1677-1679 (2002)
Kyunghee Byun et al.
PloS one, 7(5), e37917-e37917 (2012-06-05)
Advanced glycation end products (AGEs) have long been considered as potent molecules promoting neuronal cell death and contributing to neurodegenerative disorders such as Alzheimer's disease (AD). In this study, we demonstrate that AGE-albumin, the most abundant AGE product in human
Resveratrol ameliorates spatial learning memory impairment induced by Abeta1-42 in rats
Wang R, et al.
Neuroscience, 344, 39-47 (2017)
Plasma Amyloid-beta(Abeta 42) Correlates with Cerebrospinal Fluid Abeta 42 in Alzheimer?s Disease
Teunissen CE, et al.
Journal of Alzheimer'S Disease, 1-7 (2018)
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)

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