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Processing of the Amyloid Protein Precursor to Potentially Amyloidogenic Derivatives

Golde, Todd E., Estus, Steven, Younkin, Linda H., Selkoe, Dennis J., Younkin, Steven G·1992·Science

Abstract

The ∼120-kilodalton amyloid β protein precursor (βAPP) is processed into a complex set of 8- to 12-kilodalton carboxyl-terminal derivatives that includes potentially amyloidogenic forms with the ∼4-kilodalton amyloid β protein (βAP) at or near their amino terminus. In order to determine if these derivatives are processed in a secretory pathway or by the endosomal-lysosomal system, (i) deletion mutants that produce the normal set of carboxyl-terminal derivatives and shortened secreted derivatives were analyzed and (ii) the effect of inhibitors of endosomal-lysosomal processing was examined. In the secretory pathway, cleavage of the βAPP occurs at a single site within the βAP to generate one secreted derivative and one nonamyloidogenic carboxyl-terminal fragment, whereas, in the endosomal-lysosomal system, a complex set of carboxyl-terminal derivatives is produced that includes the potentially amyloidogenic forms.

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Metadata

Authors
Golde, T. E., Estus, S., Younkin, L. H., Selkoe, D. J., & Younkin, S. G.
Venue
Science
Published
1992-02-07
Volume
255
Issue
5045
Pages
728-730
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2058110454
Cited by
737
References
2
FWCI
62.35
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Processing of the Amyloid Protein Precursor to Potentially Amyloidogenic Derivatives. https://app.cochat.ai/papers/10.1126/science.1738847
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Golde, T. E., Estus, S., Younkin, L. H., Selkoe, D. J., & Younkin, S. G. (1992). Processing of the Amyloid Protein Precursor to Potentially Amyloidogenic Derivatives. Science. https://doi.org/10.1126/science.1738847

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