Beta-Amyloid (11-40)

Catalog Peptides / Catalog Peptides Gr / Peptides

RT

3151, 7

Post-mortem Alzheimer’s diseased brain specimens reveal significant levels of Aß (11-40/42) within insoluble amyloid pools. The ß-secretase enzyme or ß-amyloid precursor protein-cleaving enzyme (BACE) generates the N terminus of Aß, ultimately leading to the production of full-length Aß (1-40/42) or truncated Aß (11-40/42). The abundance of Aß (11-40/42) produced by BACE suggests that their roles in AD pathogenesis may be important. - Pyroglutamyl (pGlu) peptides may spontaneously form when either Glutamine (Q) or Glutamic acid (E) is located at the sequence N-terminus. The conversion of Q or E to pGlu is a natural occurrence and in general it is believed that the hydrophobic ?-lactam ring of pGlu may play a role in peptide stability against gastrointestinal proteases. Pyroglutamyl peptides are therefore considered a normal subset of such peptides and are included as part of the peptide purity during HPLC analysis.

No

12352202