Cited by 301Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchAmyloidosis: Diagnosis, Treatment, Outcomes

A decamer duplication in the 3′ region of the BRI gene originates an amyloid peptide that is associated with dementia in a Danish kindred

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Vidal, Ruben, Révész, Tamas, Rostagno, Agueda, Kim, Eugene, Holton, Janice L., Bek, Toke, Bojsen-Møller, Marie, Braendgaard, Hans +3 more·2000·Proceedings of the National Academy of Sciences

Abstract

Familial Danish dementia (FDD), also known as heredopathia ophthalmo-oto-encephalica, is an autosomal dominant disorder characterized by cataracts, deafness, progressive ataxia, and dementia. Neuropathological findings include severe widespread cerebral amyloid angiopathy, hippocampal plaques, and neurofibrillary tangles, similar to Alzheimer's disease. N-terminal sequence analysis of isolated leptomeningeal amyloid fibrils revealed homology to ABri, the peptide originated by a point mutation at the stop codon of gene BRI in familial British dementia. Molecular genetic analysis of the BRI gene in the Danish kindred showed a different defect, namely the presence of a 10-nt duplication (795–796insTTTAATTTGT) between codons 265 and 266, one codon before the normal stop codon 267. The decamer duplication mutation produces a frame-shift in the BRI sequence generating a larger-than-normal precursor protein, of which the amyloid subunit (designated ADan) comprises the last 34 C-terminal amino acids. This de novo- created amyloidogenic peptide, associated with a genetic defect in the Danish kindred, stresses the importance of amyloid formation as a causative factor in neurodegeneration and dementia.

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Crossref · 10.1073/pnas.080076097

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  • Disease-causing mutations in ITM2b result in C-terminally extended 277 aa mutant BRI2 proteins that are cleaved at the normal furin processing site to generate distinct 34 aa peptides (ABri in FBD and ADan in FDD) that accumulate in the brains of affected patients.

    “Disease-causing mutations result in the production of C-terminally extended 277 aa mutant BRI2 proteins, which are cleaved at the normal furin processing site to generate distinct 34 aa peptides (ABri in FBD and ADan in FDD) that accumulate in the brains of affected patients (Vidal et al., 1999(Vidal et al., , 2000)).”

    From BRI2 (ITM2b) Inhibits A  Deposition In Vivo (2008) · cites this paper as Vidal et al., 2000

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  1. [1]Strömgrem E, Dalby A, Dalby M, Ranheim B. Acta Neurol Scand. 1970;46,(Suppl. 43):97–98. doi: 10.1111/j.1600-0404.1970.tb02219.x. [DOI] [PubMed] [Google Scholar] · DOI
  2. [8]Vidal R, Garzuly F, Budka H, Lalowski M, Linke R, Brittig F, Frangione B, Wisniewski T. Am J Pathol. 1996;148:361–366. [PMC free article] [PubMed] [Google Scholar]
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Authors
Vidal, R., Révész, T., Rostagno, A., Kim, E., Holton, J. L., Bek, T., Bojsen-Møller, M., Braendgaard, H., Plant, G., Ghiso, J., & Frangione, B.
Affiliations
  • Department of Pathology, New York University School of Medicine, New York 10016; Department of Neuropathology, Institute of Neurology, London, WC1N3BG United Kingdom; Departments of Ophthalmology, Neuropathology and Neurology, Århus University Hospital, Århus, DK8000 Denmark; and The National Hospital for Neurology and Neurosurgery, London, WC1N3BG United Kingdom
  • Aarhus University (DK)
Venue
Proceedings of the National Academy of Sciences
Published
2000-04-18
Volume
97
Issue
9
Pages
4920-4925
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2137091415
Cited by
300
References
18
Citations by year
2026: 1 · 2025: 8 · 2024: 7 · 2023: 8 · 2022: 15 · 2021: 16 · 2020: 13 · 2019: 8 · 2018: 10 · 2017: 9 · 2016: 14 · 2015: 19 · 2014: 11 · 2013: 9 · 2012: 8
FWCI
9.41
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • National Institutes of Health (5r35ag010953-07)
  • National Institute on Aging (R37AG005891, R01AG008721, AG-08721, AG10953, AG05891)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Amyloidosis: Diagnosis, Treatment, Outcomes
Keywords
familial Danish dementia, amyloid peptides, Adán, cerebral amyloid angiopathy, frameshift mutation, de novo mutations, neurodegeneration
MeSH terms
Amino Acid Sequence, Amyloid, Base Sequence, Dementia, Denmark, Female, Humans, Male, Membrane Glycoproteins, Membrane Proteins, Molecular Sequence Data, Pedigree, Temporal Lobe, Sequence Alignment, Sequence Homology, Amino Acid, 3' Untranslated Regions, Gene Duplication, White People, Adaptor Proteins, Signal Transducing

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