In the realm of biochemical research, t Beta-Amyloid (1-42) HFIP treated he study of specific protein fragments is essential for understanding molecular structures. As an enthusiast who has spent considerable time exploring the cataloging of synthetic compounds, I have found that the amyloid beta peptide 1- Amyloid beta-Protein (Human, 1-42) (Scrambled) 42 sequence stands out as one of the most significant entities in neuro-biological laboratory studies. This 42-amino-acid peptide is a critical subject of interest for those examining protein aggregation and structural biolo Amyloid beta-Protein (1-42) (scrambled) trifluoroacetate salt. Code: FA110090. CAS No: 1678415-52-5. Scrambled sequence peptide composed of residues 1-42.Read more gy.
Defining the Entity: The Primary Sequence
When we look at the primary amino acid sequence of the 42-amino-acid Aβ isoform Aβ42, we are observing a highly specific arrangement of residues. The standard human sequence is represented as:
DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA
In a three-letter code format, this is often expressed as:
{ASP}{ALA}{GLU}{PHE}{ARG}{HIS}{ASP}{SER}{GLY}{TYR}{GLU}{VAL}{HIS}{HIS}{GLN}{LYS}{LEU}... followed by the remaining residues.
This sequence is fundamental to the Aβ(1-42) structure and its propensity to transition from a helical state to a beta-sheet configuration. For researchers, having an amino acid sequence verified by amino acid analysis or sequencing is a prerequisite for ensuring the integrity of their experimental models.
Technical Specifications and Variations
When sourcing these peptides, precision is paramount. The molecular weight for this amyloid fragment is approximately 4514 Da. One must be aware of the chemi Amino Acid Sequence,DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA. Purity, >98%. Other Resources, Protocol for re-suspension of Amyloid Beta Peptide 1-42. Protein Read more cal nuances, such as the formula (C203H311N55O60S) and the necessity for high purity levels, typically ≥95% (HPLC).
I have noted that there are distinctions between human and non- Amyloid β-peptide (1-42)-induced oxidative stress - PubMed human variants. For instance, the amyloid β-peptide (1-42) (rat/mouse) sequence exhibits slight variations, such as:
DAEFGHDSGFEVRHQKLVFFAEDVGSNKGAIIGLMVGGVVIA
These subtle changes in the peptide chain significantly impact how the amyloid β-peptide (Aβ) behaves in a controlled environment. Furthermore, researchers often utilize specialized forms, such as recombinant peptide Beta-Amyloid 1-42 or beta-Amyloid (1-42), FAM-labeled, to visualize interactions during sequential analysis.
Laboratory Observations on Amyloid Beta-Peptide
The amyloid domain is derived from the amyloid precursor protein (APP) through proteolytic cleavage. In my experience reviewing technical documentation, the 1-42 fragment is often contrasted with the 1-40 variant. The "42" designation refers to the length of the peptide, which is inherently more prone to aggregation.
When handling this synthetic amyloid beta peptide 1-42 (Ab1-42), proper storage at -20°C is essential to maintain the structural stability of the amyloid β. Some researchers also employ HFIP treatment to ensure the sample is not neurotoxic prior to the commencement of an assay, as the amyloid peptides can Beta Amyloid (1-42)Peptide(Human)(CAS:107761-42-2)(ab120301) is the predominantamyloid β-peptidefound in plaques associated with Alzheimer's disease Read more form fibrils if handled improperly.
Summary of Key Data Points
* Entity: Amyloid Beta (1-42)
* CAS Number: 107761-42-2
* Sequence: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA
* Molecular Weight: ~4514 Da
* Common Usage: Structural analysis, protein folding research, and biophysical characterization.
Whether you are looking at the D-A-E-F-R-H-D-S-G-Y-E-V-H-H-Q-K-L-V-F-F-A segment or examining a peptide composed of residues 1-42, understanding the underlying chemistry is vital. The amyloid β remains a cornerstone of biochemical research, and its sequence remains the definitive identifier for practitioners in the field. Always ensure that the amino acid sequence is verified by the supplier β-Amyloid Peptide (1-42), Human to maintain the highest standards of experimental accuracy.