Subcellular compartment and molecular subdomain of beta-amyloid precursor protein relevant to the Abeta 42-promoting effects of Alzheimer mutant presenilin 2.

Abstract excerpt

Increased production of amyloid beta peptides ending at position 42 (Abeta42) is one of the pathogenic phenotypes caused by mutant forms of presenilins (PS) linked to familial Alzheimer's disease. To identify the subcellular compartment(s) in which familial Alzheimer's disease mutant PS2 (mt PS2) affects the gamma-cleavage of betaAPP to increase Abeta42, we co-expressed the C-terminal 99-amino acid fragment of...

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