Amyloid β-Protein (1-42)
Cat#: 107P64
序列(三字母):H-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-OH
序列(单字母):DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA 
类似名: Aβ42, β-Amyloid (1-42) 
分子式: C₂₀₃H₃₁₁N₅₅O₆₀S
分子量: 4514.1
CAS#: 107761-42-2
合成方法:Synthetic
存储条件:-20 ± 5 °C
应用:Alzheimer's Disease
Antimicrobial & Antiviral Peptides
描述:Aβ 1-42, 42-residue fragment of amyloid precursor protein, has been found to be a major constituent of the senile plaques formed in the brains of patients with Alzheimer's disease and late Down's syndrome. Aβ 1-42 readily forms neurotoxic oligomers at physiological pH. On the other hand, the peptide shows antimicrobial activity. The sequence of H-1368 corresponds to the human, bovine, canine, feline, ovine, guinea pig, and rabbit Aβ42 peptide.
The peptide has been used to detect amyloid β-protein multimers in the cerebrospinal fluid of Alzheimer's disease patients through fluorescence correlation spectroscopy.
For detailed descriptions of the preparation of Aβ 1-42 monomers and protofibrils please see the papers of Jan, Hartley, and Lashuel, Stine et al. (2011), and of Broersen and colleagues. The findings of Ryan et al. indicate that 10% ammonia disaggregates Aβ42 more efficiently than HFIP.