Abstract:
:Amyloid beta-protein (AP) is a peptide of relative molecular mass (Mr) 42,000 found in the senile plaques, cerebrovascular amyloid deposits, and neurofibrillary tangles of patients with Alzheimer's disease and Down's syndrome (trisomy 21). Recent molecular genetic evidence has indicated that AP is encoded as part of a larger protein by a gene on chromosome 21 (refs 5-7). The defect in the inherited autosomal dominant form of Alzheimer's disease, familial Alzheimer's disease (FAD), has been mapped to the same approximate region of chromosome 21 by genetic linkage to anonymous DNA markers, raising the possibility that this gene product, which could be important in the pathogenesis of Alzheimer's disease, is also the site of the inherited defect in FAD (ref. 5). We have determined the pattern of segregation of the AP gene in FAD pedigrees using restriction fragment length polymorphisms. The detection of several recombination events with FAD suggests that the AP gene is not the site of the inherited defect underlying this disorder.
journal_name
Naturejournal_title
Natureauthors
Tanzi RE,St George-Hyslop PH,Haines JL,Polinsky RJ,Nee L,Foncin JF,Neve RL,McClatchey AI,Conneally PM,Gusella JFdoi
10.1038/329156a0subject
Has Abstractpub_date
1987-09-10 00:00:00pages
156-7issue
6135eissn
0028-0836issn
1476-4687journal_volume
329pub_type
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