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-Structure paper
Title | Cryo-EM structures of amyloid-β and tau filaments in Down syndrome. |
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Journal, issue, pages | Nat Struct Mol Biol, Vol. 31, Issue 6, Page 903-909, Year 2024 |
Publish date | Mar 29, 2024 |
Authors | Anllely Fernandez / Md Rejaul Hoq / Grace I Hallinan / Daoyi Li / Sakshibeedu R Bharath / Frank S Vago / Xiaoqi Zhang / Kadir A Ozcan / Kathy L Newell / Holly J Garringer / Wen Jiang / Bernardino Ghetti / Ruben Vidal / |
PubMed Abstract | Adult individuals with Down syndrome (DS) develop Alzheimer disease (AD). Whether there is a difference between AD in DS and AD regarding the structure of amyloid-β (Aβ) and tau filaments is ...Adult individuals with Down syndrome (DS) develop Alzheimer disease (AD). Whether there is a difference between AD in DS and AD regarding the structure of amyloid-β (Aβ) and tau filaments is unknown. Here we report the structure of Aβ and tau filaments from two DS brains. We found two Aβ filaments (types IIIa and IIIb) that differ from those previously reported in sporadic AD and two types of Aβ filaments (I and II) identical to those found in sporadic and familial AD. Tau filaments (paired helical filaments and straight filaments) were identical to those in AD, supporting the notion of a common mechanism through which amyloids trigger aggregation of tau. This knowledge is important for understanding AD in DS and assessing whether adults with DS could be included in AD clinical trials. |
External links | Nat Struct Mol Biol / PubMed:38553642 / PubMed Central |
Methods | EM (helical sym.) |
Resolution | 2.9 - 3.8 Å |
Structure data | EMDB-40411, PDB-8seh: EMDB-40413, PDB-8sei: EMDB-40416, PDB-8sej: EMDB-40419, PDB-8sek: EMDB-40421, PDB-8sel: |
Source |
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Keywords | NEUROPEPTIDE / PHF Tau / Tau Filament / Down Syndrome / Human Trisomy 21 / SF Tau / Beta Amyloid filaments |