Article
A common flanking variant is associated with enhanced stability of the FGF14-SCA27B repeat locus.
Nature genetics - 1 Jul 2024
Pellerin David, Del Gobbo Giulia F, Couse Madeline, Dolzhenko Egor, Nageshwaran Sathiji K, Cheung Warren A, Xu Isaac R L, Dicaire Marie-Josée, Spurdens Guinevere, Matos-Rodrigues Gabriel, Stevanovski Igor, Scriba Carolin K, Rebelo Adriana, Roth Virginie, Wandzel Marion, Bonnet Céline, Ashton Catherine, Agarwal Aman, Peter Cyril, Hasson Dan, Tsankova Nadejda M, Dewar Ken, Lamont Phillipa J, Laing Nigel G, Renaud Mathilde, Houlden Henry, Synofzik Matthis, Usdin Karen, Nussenzweig Andre, Napierala Marek, Chen Zhao, Jiang Hong, Deveson Ira W, Ravenscroft Gianina, Akbarian Schahram, Eberle Michael A, Boycott Kym M, Pastinen Tomi, Brais Bernard, Zuchner Stephan, Danzi Matt C
Abstract excerpt
The factors driving or preventing pathological expansion of tandem repeats remain largely unknown. Here, we assessed the FGF14 (GAA)·(TTC) repeat locus in 2,530 individuals by long-read and Sanger sequencing and identified a common 5'-flanking variant in 70.34% of alleles analyzed (3,463/4,923) that represents the phylogenetically ancestral allele and is present on all major haplotypes. This common sequence...
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