rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
2
|
pubmed:dateCreated |
2000-2-28
|
pubmed:abstractText |
Mutations in the presenilin 1 ( PS-1 ) gene cause Alzheimer's disease (AD). These mutations alter the processing of the amyloid precursor protein (APP) by increasing the production of the fibrillogenic amyloid fragment, Abeta1-42/43. Since the secretase activities that process APP are localized in different intracellular compartments, it is likely that membrane transport is a key factor in the pathogenesis of AD. In this report we provide evidence for a direct connection between PS-1 and membrane transport. We show that the N-terminus of PS-1 binds to rab GDP dissociation inhibitor (rabGDI), a regulatory factor in vesicle transport. In PS-1-deficient neurons we found a 2-fold decrease in the amount of rabGDI associated with membranes. Our findings are compatible with PS-1 being a membrane receptor for rabGDI. This is in line with a role of PS-1 in the regulation of protein trafficking in the ER/Golgi, which can modulate the production of Abeta.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0964-6906
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
22
|
pubmed:volume |
9
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
303-10
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:10607841-Adult,
pubmed-meshheading:10607841-Alzheimer Disease,
pubmed-meshheading:10607841-Animals,
pubmed-meshheading:10607841-Biological Transport, Active,
pubmed-meshheading:10607841-Cell Compartmentation,
pubmed-meshheading:10607841-Cell Line,
pubmed-meshheading:10607841-Guanine Nucleotide Dissociation Inhibitors,
pubmed-meshheading:10607841-Humans,
pubmed-meshheading:10607841-Membrane Proteins,
pubmed-meshheading:10607841-Mice,
pubmed-meshheading:10607841-Neurons,
pubmed-meshheading:10607841-Peptide Fragments,
pubmed-meshheading:10607841-Presenilin-1,
pubmed-meshheading:10607841-Receptors, Cell Surface,
pubmed-meshheading:10607841-Transfection
|
pubmed:year |
2000
|
pubmed:articleTitle |
Alzheimer's presenilin 1 is a putative membrane receptor for rab GDP dissociation inhibitor.
|
pubmed:affiliation |
Laboratory Neurozintuigen and Department of Neurology, Academic Medical Center, PO Box 22700, 1105 AZ Amsterdam, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|