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A rare variant in MYH6 is associated with high risk of sick sinus syndrome

  • Hilma Holm
  • , Daniel F. Gudbjartsson
  • , Patrick Sulem
  • , Gisli Masson
  • , Hafdis Th Helgadottir
  • , Carlo Zanon
  • , Olafur Th Magnusson
  • , Agnar Helgason
  • , Jona Saemundsdottir
  • , Arnaldur Gylfason
  • , Hrafnhildur Stefansdottir
  • , Solveig Gretarsdottir
  • , Stefan E. Matthiasson
  • , Guomundur Thorgeirsson
  • , Aslaug Jonasdottir
  • , Asgeir Sigurdsson
  • , Hreinn Stefansson
  • , Thomas Werge
  • , Thorunn Rafnar
  • , Lambertus A. Kiemeney
  • Babar Parvez, Raafia Muhammad, Dan M. Roden, Dawood Darbar, Gudmar Thorleifsson, G. Bragi Walters, Augustine Kong, Unnur Thorsteinsdottir, David O. Arnar, Kari Stefansson

Research output: Contribution to journalArticlepeer-review

Abstract

Through complementary application of SNP genotyping, whole-genome sequencing and imputation in 38,384 Icelanders, we have discovered a previously unidentified sick sinus syndrome susceptibility gene, MYH6, encoding the alpha heavy chain subunit of cardiac myosin. A missense variant in this gene, c.2161C>T, results in the conceptual amino acid substitution p.Arg721Trp, has an allelic frequency of 0.38% in Icelanders and associates with sick sinus syndrome with an odds ratio = 12.53 and P = 1.5-10'29. We show that the lifetime risk of being diagnosed with sick sinus syndrome is around 6% for non-carriers of c.2161C>T but is approximately 50% for carriers of the c.2161C>T variant.

Original languageEnglish (US)
Pages (from-to)316-323
Number of pages8
JournalNature Genetics
Volume43
Issue number4
DOIs
StatePublished - Feb 2011

All Science Journal Classification (ASJC) codes

  • Genetics

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