beta-amyloid 1-40

Amyloid β1-40 is one of the fragments generated after cleavage of the amyloid peptide precursor protein by β and γ secretases.

Amyloid beta-protein(1-40) Arctic variant (Ab40ARC (E22G)), featuring a glycine at position 22 (Gly22), is a peptide utilized in Alzheimer's disease research [1].

β-Amyloid (1-40), FAM-labeled, is a β-Amyloid (1-40) peptide tagged with a FAM fluorescent label, exhibiting an excitation wavelength (λ ex) of 492 nm and an emission wavelength (λ em) of 518 nm.

Biotin-β-Amyloid (1-40) is an amyloid-β-(1-40) peptide with an N-terminal biotinylation.

[Asn23] β-Amyloid (1-40), Iowa mutation, is a biologically active peptide linked to autosomal dominant Alzheimer's Disease in multiple families. This involves the substitution of Asp 23 with Asn, causing severe cerebral amyloid beta-protein angiopathy (CAA). Individuals with this mutation exhibit a missense alteration in the APP gene at position 694, resulting in the mutated β-amyloid peptide aggregating more quickly and forming toxic fibrils.

β-Amyloid (1-40), England mutation, is a biologically active peptide with a histidine (His) to arginine (Arg) substitution at position 6, known to enhance oligomerization kinetics that serve as fibril seeds and increase neurotoxicity in cultured neurons. This alteration is one of several mutations in the beta-amyloid precursor gene implicated in autosomal dominant Alzheimer's Disease across multiple kindreds.

(Pyr11)-Amyloid β-Protein (11-40) (Aβ11pE-40), a peptide, is utilized in Alzheimer's disease research [1].

Rat form of the beta-Amyloid (1-40) peptide

This is an N-terminal fragment of beta amyloid. It consists of amino acid residues 1 to 9. Truncated beta amyloid peptide (10-40) still forms amyloid fibrils and shows fibril polymorphism.