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A3356

Sigma-Aldrich

Anti-β-Amyloid (22-35) antibody produced in rabbit

affinity isolated antibody, buffered aqueous solution

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Synonym(s):
Anti-A4 Amyloid protein, Anti-ABETA, Anti-ABPP, Anti-AD1, Anti-APPI, Anti-Amyloid β A4 protein, Anti-Amyloid-β protein (ABP)
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~4 kDa

species reactivity

rat, human, mouse

packaging

antibody small pack of 25 μL

technique(s)

indirect ELISA: 0.2-0.4 μg/mL using β-amyloid peptide (22-35)
western blot: 0.25-0.5 μg/mL using β-amyloid peptide (1-40)

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... APP(351)
mouse ... App(11820)
rat ... App(54226)

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This Item
ABN240MABN2273MABN2295
Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

biological source

rabbit

biological source

rabbit

biological source

rat

biological source

rat

antibody form

affinity isolated antibody

antibody form

affinity isolated antibody

antibody form

purified antibody

antibody form

purified antibody

Gene Information

human ... APP(351)
mouse ... App(11820)
rat ... App(54226)

Gene Information

human ... APP(351)

Gene Information

human ... APP(351)

Gene Information

human ... APP(351)

shipped in

dry ice

shipped in

wet ice

shipped in

ambient

shipped in

ambient

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General description

Rabbit anti-β-amyloid (22-35) antibody specifically recognizes β-amyloid (22-35), β-amyloid (25-35), β-amyloid (1-40) and β-amyloid (1-42) and does not react with β-amyloid (32-35) and β-amyloid (35-25) by ELISA. The antibody detects β-amyloid (1-40) by immunoblotting (approx. 4kDa). Staining of the β-amyloid (1-40) band in immunoblotting is specifically inhibited by the immunizing peptide.
Cleavage of the amyloid precursor protein (APP) by γ-secretase produces the small fragment amyloid β (Aβ) peptide. Cleavage of APP occurs mostly at residue 40 but to a lesser extent residue 42. The amyloid β peptide contains a ~100 kDa soluble N-terminal fragment, and intracellular C-terminal fragments (CTFs) bearing the complete Aβ domain.
Proteolytic cleavage of the amyloid precursor protein (APP) produces the small fragment amyloid β peptide. Cleavage of APP occurs mostly at residue 40 but to a lesser extent residue 42. Aggregates of amyloid β peptide are found deposited in the brains of Alzheimer′s patients.

Immunogen

synthetic peptide corresponding to amino acids 22-35 of human β-amyloid (1-40) fragment, conjugated to KLH. This sequence corresponds to amino acids 693-706 of the human amyloid precursor protein APP, and is identical in mouse and rat APP.

Application

Rabbit anti-β-amyloid (22-35) antibody can be used for ELISA at a concentration of 0.2-0.4μg/mL using β-amyloid peptide (22-35). The product can also be used for western blot at 0.25-0.5μg/mL using β-amyloid peptide (1-40).
Anti-β-Amyloid (22-35) antibody produced in rabbit has been used in:
  • western blot
  • dot-blot assay
  • indirect enzyme linked immunosorbent assay (ELISA)

Biochem/physiol Actions

Secreted Aβ lead to synaptic and neuritic compromise and glial activation. Aggregates of amyloid β peptide are found deposited in the brains of Alzheimer′s patients. Aβ(25-35) and Aβ(22-35) fragments are highly toxic segments of β-amyloid peptides that promote inflammatory processes in astrocytes and fibrillary aggregation of Aβ, thus representing a promising therapeutic target for Alzheimer′s.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide and 1% bovine serum albumin.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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An Overview of APP Processing Enzymes and Products
Chow VW, et al.
Neuromolecular Medicine, 12, 1-1 (2010)
Mechanisms of transthyretin inhibition of $\beta$-amyloid aggregation in vitro
Li X, et al.
The Journal of Neuroscience, 33(50), 19423-19433 (2013)
Xinyi Li et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(50), 19423-19433 (2013-12-18)
Tissue-specific overexpression of the human systemic amyloid precursor transthyretin (TTR) ameliorates Alzheimer's disease (AD) phenotypes in APP23 mice. TTR-β-amyloid (Aβ) complexes have been isolated from APP23 and some human AD brains. We now show that substoichiometric concentrations of TTR tetramers
Mechanisms of Amyloid-beta Peptide Clearance: Potential Therapeutic Targets for Alzheimer's Disease
Yoon SS, et al.
Biomolecules & Therapeutics, 20, 245-245 (2012)
Lukas P Feilen et al.
eLife, 11 (2022-05-18)
Cleavage of membrane proteins in the lipid bilayer by intramembrane proteases is crucial for health and disease. Although different lipid environments can potently modulate their activity, how this is linked to their structural dynamics is unclear. Here, we show that

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