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The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Presenilin 2 familial Alzheimer's disease mutations result in partial loss of function and dramatic changes in Aβ 42/40 ratios

Walker, Emily S., Martinez, Maribel, Brunkan, Anne L., Goate, Alison·2005·Journal of Neurochemistry

Abstract

Gene knockout studies in mice suggest that presenilin 1 (PS1) is the major γ‐secretase and that it contributes disproportionately to amyloid β (Aβ) peptide generation from β‐amyloid precursor protein (APP), whereas PS2 plays a more minor role. Based on this and other observations we hypothesized that familial Alzheimer's disease (FAD) mutations in PS2 would have a dramatic effect on function in order to have an observable effect on Aβ levels in the presence of normal PS1 alleles. Only four of the eight reported FAD mutations in PS2 have altered function in vitro suggesting that the other variants represent rare polymorphisms rather than disease‐causing mutations. In support of our hypothesis, the four verified PS2 FAD mutations cause substantial changes in the Aβ 42/40 ratio, comparable with PS1 mutations that cause very‐early‐onset FAD. Most of the PS2 mutations also cause a significant decrease in Aβ 40, APP C‐terminal fragment (CTF)γ and Notch intracellular domain (NICD) production suggesting that they are partial loss of function mutations. PS2 M239V, its PS1 homolog M233V, and other FAD mutations within transmembrane (TM) 5 of PS1 differentially affect CTFγ and NICD production suggesting that TM5 of PS are important for γ‐secretase cleavage of APP but not Notch.

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Metadata

Authors
Walker, E. S., Martinez, M., Brunkan, A. L., & Goate, A.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2004-12-09
Volume
92
Issue
2
Pages
294-301
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2088858515
Cited by
177
References
7
FWCI
5.70
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Presenilin 2 familial Alzheimer's disease mutations result in partial loss of function and dramatic changes in Aβ 42/40 ratios. https://app.cochat.ai/papers/10.1111/j.1471-4159.2004.02858.x
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Walker, E. S., Martinez, M., Brunkan, A. L., & Goate, A. (2005). Presenilin 2 familial Alzheimer's disease mutations result in partial loss of function and dramatic changes in Aβ 42/40 ratios. Journal of Neurochemistry. https://doi.org/10.1111/j.1471-4159.2004.02858.x

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