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alpha beta 1-40 peptide is a 40-43 amino acid peptide

Published October Oct 18, 2026 12:11 AM

In the realm of biochemical research, the study of proteins and their derivatives remains a cornerstone for understanding cellular mechanisms. Among these, the alpha beta 1-40 peptide—frequently referred to in literature as beta amyloid peptide 1-40 or simply Aβ(1-40)—serves as a primary focus for investigators examining protein aggregation and structural biology.

Defining the Molecule: What is Alpha Beta 1-40 Peptide?

At its core, this molecule is a 40-amino-acid peptide derived from the larger amyloid precursor protein (APP). It is a synthetic peptide composed of 40 amino ac Amyloid b-Peptide(1-40) (human) is apeptideprocessed from the amyloid precursor protein (APP). - >99% HPLC purity, ideal for cancer research and  ids that mirrors the specific residues found in biological systems. Researchers often utilize recombinant human Amyloid-Beta 1-40 to ensure high purity and consistency across experimental trials.

From a structural perspective, the Aβ peptide (1-40) is characterized by its specific sequence: Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln. Because it is a 40-43 amino acid peptide, it is often studied alongside its counterpart, Aβ(1-42). Together, they represent the two major C-terminal variants of the Aβ family. While Aβ(1-42) is often noted for its aggregation properties, Aβ(1-40) remains one of the two most abundant species of amyloid-beta peptides found in extracellular environments.

Research Applications and Analytical Methods

When sourcing these materials for laboratory use, quality control is paramount. High-grade Beta amyloid samples, such as those prepared with HFIP (hexafluoroisopropanol) to maintain a monomeric state, are preferred to minimize pre-existing aggregation. This ensures that the 1-40 sequence behaves The plasma A42/40 ratiois intended for use as an adjunct to diagnostic evaluations of Alzheimer's disease, including neurological and cognitive performance Read more predictably during assays.

The substance is a neurotrophic factor that is involved in the pathogenic mechanism of Alzheimer's disease models, which makes it a critical tool in neurobiology laboratories. Furthermore, because it is a small peptide present in normal cells, maintaining accurate baseline measurements is essential. Scientists frequently utilize β-Amyloid (1-40) TFA (trifluoroacetate salt) for its stability.

Many researchers rely on sophisticated diagnostic too High quality recombinant Beta-Amyloid (1-40), HFIP, >97% purity. Highly monomeric, batch to batch consistency. Order online today - R&D starts at rPeptide. ls, as the material is intended for use as an adjunct to diagnostic evaluations of Alzheimer's disease. To facilitate this, the amyloid-beta 1-40 peptide is often utilized in high-throughput settings, as it is ideal for use with immunoassay technologies and ELISA platforms.

Key Characteristics for Experimental Design

When conducting studies, it is important to distinguish between various forms:

* Synthetic Production: Most laboratory-grade versions are produced synthetically to ensure a precise sequence.

* Structural Insight: As a 40-residue peptide, its folding patterns—specifically the α-helix conformation—are subject to intense scrutiny in structural biology.

* Comparative Studies: As one of the two main forms found in plaques associa High quality recombinant Beta-Amyloid (1-40), HFIP, >97% purity. Highly monomeric, batch to batch consistency. Order online today - R&D starts at rPeptide. ted with Alzheimer's disease, it provides a critical benchmark fo 505725: Beta Amyloid 42/40 Ratio, Plasma r comparing metabolic pathways in different tissue models.

* Versatility: Whether one is seeking Beta Amyloid 1 40 Peptide for metabolic studies or structural analysis, the use of standardized, verified monomeric forms is the industry standard.

Conclusion

The study of peptide biology continues to evolve as technology allows for more precise manipulation of these sequences. Whether investigating the beta-amyloid pathway or utilizing fluorescently labeled variants to track movement within a system, the alpha beta 1-40 peptide remains an indispensable entity in the scienti Amyloid Beta-Peptide (1-40) (human) (CAS 131438-79-4)is a synthetic peptide composed of 40 amino acidsidentical to residues 1-40 of human amyloid-beta Read more fic community. By maintaining rigorous standards in handling and application, researchers can continue to unl The major protein component of these plaques isbetaamyloidpeptide(A), a 40- to 43- amino-acidpeptidecleaved from amyloid precursor protein by secretase ( Read more ock the complexities of these peptides of 36–43 amino acids and their roles in various biological processes.

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