Analysis of IFT74 as a candidate gene for chromosome 9p-linked ALS-FTD

Bibliographic Details
Title: Analysis of IFT74 as a candidate gene for chromosome 9p-linked ALS-FTD
Authors: Rogaeva Ekaterina, Hutton Michael L, Adamson Jennifer, Wassermann Eric M, Huey Edward D, Holtzman David M, Fung Hon, Chiò Adriano, Pickering-Brown Stuart, Berger Stephen, Greenway Matthew J, Greggio Elisa, Cairns Nigel J, Cookson Mark R, Jain Shushant, Schymick Jennifer, Momeni Parastoo, St George-Hyslop Peter, Rothstein Jeffrey D, Hardiman Orla, Grafman Jordan, Singleton Andrew, Hardy John, Traynor Bryan J
Source: BMC Neurology, Vol 6, Iss 1, p 44 (2006)
Publisher Information: BMC, 2006.
Publication Year: 2006
Collection: LCC:Neurology. Diseases of the nervous system
Subject Terms: Neurology. Diseases of the nervous system, RC346-429
More Details: Abstract Background A new locus for amyotrophic lateral sclerosis – frontotemporal dementia (ALS-FTD) has recently been ascribed to chromosome 9p. Methods We identified chromosome 9p segregating haplotypes within two families with ALS-FTD (F476 and F2) and undertook mutational screening of candidate genes within this locus. Results Candidate gene sequencing at this locus revealed the presence of a disease segregating stop mutation (Q342X) in the intraflagellar transport 74 (IFT74) gene in family 476 (F476), but no mutation was detected within IFT74 in family 2 (F2). While neither family was sufficiently informative to definitively implicate or exclude IFT74 mutations as a cause of chromosome 9-linked ALS-FTD, the nature of the mutation observed within F476 (predicted to truncate the protein by 258 amino acids) led us to sequence the open reading frame of this gene in a large number of ALS and FTD cases (n = 420). An additional sequence variant (G58D) was found in a case of sporadic semantic dementia. I55L sequence variants were found in three other unrelated affected individuals, but this was also found in a single individual among 800 Human Diversity Gene Panel samples. Conclusion Confirmation of the pathogenicity of IFT74 sequence variants will require screening of other chromosome 9p-linked families.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1471-2377
Relation: http://www.biomedcentral.com/1471-2377/6/44; https://doaj.org/toc/1471-2377
DOI: 10.1186/1471-2377-6-44
Access URL: https://doaj.org/article/ddfa16b0fe0040538ac1b5136221f70f
Accession Number: edsdoj.fa16b0fe0040538ac1b5136221f70f
Database: Directory of Open Access Journals
More Details
ISSN:14712377
DOI:10.1186/1471-2377-6-44
Published in:BMC Neurology
Language:English