دورية أكاديمية

A commonly used Drosophila model of Alzheimer’s disease generates an aberrant species of amyloid-β with an additional N-terminal glutamine residue.

التفاصيل البيبلوغرافية
العنوان: A commonly used Drosophila model of Alzheimer’s disease generates an aberrant species of amyloid-β with an additional N-terminal glutamine residue.
المؤلفون: Allan, Kirsten, Perez, Keyla A., Barnham, Kevin J., Camakaris, James, Burke, Richard
المصدر: FEBS Letters; Oct2014, Vol. 588 Issue 20, p3739-3743, 5p
مصطلحات موضوعية: ALZHEIMER'S disease treatment, AMYLOID beta-protein, DROSOPHILA, N-terminal residues, GLUTAMINE, TIME-of-flight mass spectrometry, BIOLOGICAL assay
مستخلص: Expression of human amyloid-β (Aβ) in Drosophila is frequently used to investigate its toxicity in vivo. We expressed Aβ 1–42 in the fly using a secretion signal derived from the Drosophila necrotic gene, as described in several previous publications. Surface-enhanced laser desorption/ionization TOF MS analysis revealed that the Aβ produced contained an additional glutamine residue at the N-terminus. Aβ Q+1–42 was found to have increased protein abundance and to cause more severe neurodegenerative effects than wild type Aβ 1–42 as assessed by locomotor activity and lifespan assays. These data reveal that a commonly used model of Alzheimer’s disease generates incorrect Aβ peptide. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:00145793
DOI:10.1016/j.febslet.2014.08.022