Functional amyloids as natural storage of peptide hormones in pituitary secretory granules.
Functional amyloids as natural storage of peptide hormones in pituitary secretory granules.
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DOI:
10.1126/science.1173155
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发表时间:
2009-07-17
期刊:
影响因子:
--
通讯作者:
Riek R
中科院分区:
文献类型:
--
作者:
Maji SK;Perrin MH;Sawaya MR;Jessberger S;Vadodaria K;Rissman RA;Singru PS;Nilsson KP;Simon R;Schubert D;Eisenberg D;Rivier J;Sawchenko P;Vale W;Riek R
Amyloids are highly organized cross β-sheet-rich protein or peptide aggregates that are associated with pathological conditions including Alzheimer’s disease and type II diabetes. However, amyloids may also have a normal biological function as demonstrated by fungal prions, which are involved in prion replication, and the amyloid protein Pmel17, which is involved in mammalian skin pigmentation. Here, we show that peptide and protein hormones in secretory granules of the endocrine system are stored in an amyloid-like cross β-sheet-rich conformation. Thus, in contrast to the original association of amyloids with diseases, functional amyloids in the pituitary and other organs can contribute to normal cell and tissue physiology.
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