Intramembrane proteolysis by presenilins.
Many neurodegenerative diseases involve the deposition of insoluble amyloid molecules. In Alzheimer's disease, for example, the amyloid beta-peptide (A beta) is the main component of the characteristic senile plaques. Proteolytic enzymes called secretases are involved in generating A beta, and one of these may have been identified as presenilin--a discovery that paves the way for a more complete understanding of presenilin structure and function.
Adolf Butenandt-Institute, Department of Biochemistry, Laboratory for Alzheimer's Disease Research, Ludwig-Maximilians University, 80336 Munich, Germany.
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D000544:Alzheimer Disease / Q000378:metabolism; D053829:Amyloid Precursor Protein Secretases; D016564:Amyloid beta-Protein Precursor / Q000235:genetics / Q000502:physiology; D000818:Animals; D016282:Aspartic Acid Endopeptidases; D010450:Endopeptidases / Q000502:physiology; D006801:Humans; D008565:Membrane Proteins / Q000737:chemistry / Q000378:metabolism / Q000502:physiology*; D008954:Models, Biological; D009154:Mutation; D019636:Neurodegenerative Diseases / Q000378:metabolism*; D053764:Presenilin-1; D053766:Presenilin-2; D015398:Signal Transduction
D016564:Amyloid beta-Protein Precursor; D008565:Membrane Proteins; C508853:PSEN1 protein, human; C508861:PSEN2 protein, human; D053764:Presenilin-1; D053766:Presenilin-2; D053829:Amyloid Precursor Protein Secretases; D010450:Endopeptidases; D016282:Aspartic Acid Endopeptidases; C509280:BACE1 protein, human