نتایج جستجو برای: islet amyloid polypeptide
تعداد نتایج: 80109 فیلتر نتایج به سال:
The aggregation of human islet amyloid polypeptide (hIAPP) has been linked to beta-cell death in type II diabetes. Zinc present in secretory granules has been shown to affect this aggregation. A combination of EXAFS, NMR, and AFM experiments shows that the influence of zinc is most likely due to the stabilization of prefibrillar aggregates of hIAPP.
A small molecule, protein mimetic based approach is shown to specifically inhibit lipid catalysed self-assembly of islet amyloid polypeptide (IAPP). The lipid-bound oligomerization of this peptide is implicated in cellular dysfunction of insulin secreting β-cells in type II diabetes.
Human islet amyloid polypeptide (hIAPP) deposit is the hallmark of type 2 diabetes pathology. Here, we report that apo-cyclen, attached to a specific hIAPP recognition motif (NYGAIL), captured copper ions and became proteolytically active. This cyclen-NYGAIL-copper complex was able to interfere with hIAPP aggregation and cleave hIAPP. These activities rescued INS-1 cells from hIAPP induced cyto...
Homomeric self-assembly of peptides into amyloid fibers is a feature of many diseases. A central role has been suggested for the lateral fiber surface affecting gains of toxic function. To investigate this, a protein scaffold that presents a discrete, parallel β-sheet surface for amyloid subdomains up to eight residues in length has been designed. Scaffolds that present the fiber surface of isl...
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