Amyloid beta 1-40
Amyloid beta peptide 1-40 (Aβ1-40)
DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV Amino Acids · MW: 4.33 kDa
Amino Acids
DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV
Molecular Weight
4.33 kDa
Half-life
minutes to hours
Research Score
4.8
Studies
95
Storage
Store lyophilized at -20°C, reconstituted at 2-8°C
What is Amyloid beta 1-40?
A 40-aa amyloid peptide that complements Aβ1-42 in diagnostic testing for Alzheimer's disease. The Aβ42/40 ratio is often more informative than either peptide alone for estimating amyloid burden.
Key Benefits & Mechanisms
Aβ42/40 ratio support
amyloid burden assessment
alzheimers diagnosis aid
Research Summary
Aβ1-40 is routinely measured alongside Aβ1-42 in clinical and research assays to normalize inter-individual peptide production and improve specificity.
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