pubmed:abstractText |
Amyloid plaques, a major pathological feature of Alzheimer disease (AD), are composed of an internal fragment of amyloid precursor protein (APP): the 4-kd amyloid-beta protein (Abeta). The metabolic processing of APP that results in Abeta formation requires 2 enzymatic cleavage events, a gamma-secretase cleavage dependent on presenilin, and a beta-secretase cleavage by the aspartyl protease beta-site APP-cleaving enzyme (BACE).
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pubmed:affiliation |
Alzheimer Disease Research Unit, Center for Aging, Genetics, and Neurodegeneration, Massachusetts General Hospital-East, Bldg 114, Room 2010, 114 16th Street, Charlestown, MA 02129, USA.
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