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June 2020; 6 (3) ArticleOpen Access

Prevalence of RFC1-mediated spinocerebellar ataxia in a North American ataxia cohort

Dona Aboud Syriani, Darice Wong, Sameer Andani, Claudio M. De Gusmao, Yuanming Mao, May Sanyoura, Giacomo Glotzer, View ORCID ProfilePaul J. Lockhart, Sharon Hassin-Baer, Vikram Khurana, Christopher M. Gomez, Susan Perlman, Soma Das, Brent L. Fogel
First published May 20, 2020, DOI: https://doi.org/10.1212/NXG.0000000000000440
Dona Aboud Syriani
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Darice Wong
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Sameer Andani
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Claudio M. De Gusmao
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Yuanming Mao
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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May Sanyoura
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Giacomo Glotzer
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Paul J. Lockhart
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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  • ORCID record for Paul J. Lockhart
Sharon Hassin-Baer
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Vikram Khurana
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Christopher M. Gomez
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Susan Perlman
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Soma Das
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Brent L. Fogel
From the Department of Neurology (D.A.S., D.W., Y.M., S.P., B.L.F.), Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (D.W., B.L.F.), Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles; Department of Human Genetics (S.A., M.S., S.D.), University of Chicago, IL; Department of Neurology (C.M.D.G., V.K.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (G.G., C.M.G.), University of Chicago, IL; Bruce Lefroy Centre (P.J.L.), Murdoch Children's Research Institute; Department of Paediatrics (P.J.L.), University of Melbourne, Parkville, Australia; Sackler Faculty of Medicine (S.H.-B.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Human Genetics (B.L.F.), David Geffen School of Medicine, University of California, Los Angeles.
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Full PDF
Citation
Prevalence of RFC1-mediated spinocerebellar ataxia in a North American ataxia cohort
Dona Aboud Syriani, Darice Wong, Sameer Andani, Claudio M. De Gusmao, Yuanming Mao, May Sanyoura, Giacomo Glotzer, Paul J. Lockhart, Sharon Hassin-Baer, Vikram Khurana, Christopher M. Gomez, Susan Perlman, Soma Das, Brent L. Fogel
Neurol Genet Jun 2020, 6 (3) e440; DOI: 10.1212/NXG.0000000000000440

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    Figure 1 RFC1 expansion analysis

    Representative RP-PCR results from a patient with disease due to (A) biallelic expanded (AAGGG) pathogenic alleles or a control individual (B) with wild-type alleles. Samples with RP-PCR evidence of an expanded RFC1 allele were genotyped by standard PCR for biallelic expansion (C). Standard PCR allows categorization of individuals as biallelic with pathogenic expansions (no band, lanes 1-4), heterozygous wild-type (348 bp band, arrow, lanes 5-8), heterozygous with a non-pathogenic polymorphic expansion (variable sized bands, lanes 9-11), or wild-type with one or more non-pathogenic polymorphic expansion(s) (variable sized band(s), lanes 12-14). + = biallelic control; − = wild-type control; M = marker; RFC1 = replication factor C subunit 1.

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links.lww.com/NXG/A266links.lww.com/NXG/A267links.lww.com/NXG/A266links.lww.com/NXG/A267links.lww.com/NXG/A266links.lww.com/NXG/A266

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