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Digenic inheritance involving a muscle-specific protein kinase and the giant titin protein causes a skeletal muscle myopathy

  • Ana Töpf*
  • , Dan Cox
  • , Irina T. Zaharieva
  • , Valeria Di Leo
  • , Jaakko Sarparanta
  • , Per Harald Jonson
  • , Ian M. Sealy
  • , Andrei Smolnikov
  • , Richard J. White
  • , Anna Vihola
  • , Marco Savarese
  • , Munise Merteroglu
  • , Neha Wali
  • , Kristen M. Laricchia
  • , Cristina Venturini
  • , Bas Vroling
  • , Sarah L. Stenton
  • , Beryl B. Cummings
  • , Elizabeth Harris
  • , Chiara Marini-Bettolo
  • Jordi Diaz-Manera, Matt Henderson, Rita Barresi, Jennifer Duff, Eleina M. England, Jane Patrick, Sundos Al-Husayni, Valerie Biancalana, Alan H. Beggs, Istvan Bodi, Shobhana Bommireddipalli, Carsten G. Bönnemann, Anita Cairns, Mei Ting Chiew, Kristl G. Claeys, Sandra T. Cooper, Mark R. Davis, Sandra Donkervoort, Corrie E. Erasmus, Mahmoud R. Fassad, Casie A. Genetti, Carla Grosmann, Heinz Jungbluth, Erik Jan Kamsteeg, Xavière Lornage, Wolfgang N. Löscher, Edoardo Malfatti, Adnan Manzur, Pilar Martí, Tiziana E. Mongini, Nuria Muelas, Atsuko Nishikawa, Anne O’Donnell-Luria, Narumi Ogonuki, Gina L. O’Grady, Emily O’Heir, Stéphanie Paquay, Rahul Phadke, Beth A. Pletcher, Norma B. Romero, Meyke Schouten, Snehal Shah, Izelle Smuts, Yves Sznajer, Giorgio Tasca, Robert W. Taylor, Allysa Tuite, Peter Van den Bergh, Grace VanNoy, Nicol C. Voermans, Julia V. Wanschitz, Elizabeth Wraige, Kimihiko Yoshimura, Emily C. Oates, Osamu Nakagawa, Ichizo Nishino, Jocelyn Laporte, Juan J. Vilchez, Daniel G. MacArthur, Anna Sarkozy, Heather J. Cordell, Bjarne Udd, Elisabeth M. Busch-Nentwich, Francesco Muntoni, Volker Straub*
*Corresponding author for this work
  • Newcastle upon Tyne Hospitals NHS Foundation Trust
  • UCL Great Ormond Street Institute of Child Health
  • University of Trieste
  • Folkhalsan Res Ctr, Helsinki
  • University of Helsinki
  • Queen Mary University of London
  • Department of Medicine
  • Kensington
  • School of Medicine
  • University of Padua
  • Wellcome Sanger Institute
  • Broad Institute of MIT and Harvard
  • Massachusetts General Hospital
  • Division of Infection and Immunity
  • UCL University College London
  • Bio-Prodict
  • Boston Children's Hospital
  • Northern Genetics Service
  • Parkinson and Movement Disorders Unit; IRCCS Hospital San Camillo
  • Harvard Medical School
  • University of Strasbourg
  • KCH King's College Hospital NHS Foundation Trust
  • Childrens Hosp Westmead, Children's Medical Research Institute - Australia
  • Neuroscience Center, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA.
  • Queensland Children’s Hospital
  • PathWest Laboratory Medicine WA
  • University Hospitals Leuven
  • KU Leuven
  • Donders Institute for Brain, Cognition and Behaviour
  • Wellcome Trust Centre for Mitochondrial Research
  • University of California at San Diego
  • St Thomas' Hospital
  • GSTT Guy's and St Thomas' NHS Foundation Trust
  • Randall Centre Cell and Molecular Biophysics
  • Department of Neurology
  • Medical University of Innsbruck
  • Île-de-France
  • CIBER - Centro de Investigacion Biomedica en Red
  • Instituto de Investigación Sanitaria Gregorio Marañón (IISGM)
  • University of Turin
  • Universitat de València
  • Hospital Universitario La Paz
  • National Institute of Neuroscience, Kodaira
  • RIKEN BioResource Center
  • National Women's Auckland District Health Board
  • Laboratoire de Neuropathologie du Développement, Cliniques Universitaires Saint-Luc, University of Louvain Medical School at Brussels, Belgium.
  • New Jersey Medical School
  • Groupe Hospitalier Pitié-Salpêtrière
  • Perth Children's Hospital
  • Steve Biko Academic Hospital
  • Nankoku Hospital
  • National Cerebral and Cardiovascular Center
  • Garvan Institute of Medical Research
  • Murdoch Childrens Res Ctr, Murdoch Children's Research Institute
  • Newcastle University
  • Great Ormond Street Hospital for Children NHS Foundation Trust

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

In digenic inheritance, pathogenic variants in two genes must be inherited together to cause disease. Only very few examples of digenic inheritance have been described in the neuromuscular disease field. Here we show that predicted deleterious variants in SRPK3, encoding the X-linked serine/argenine protein kinase 3, lead to a progressive early onset skeletal muscle myopathy only when in combination with heterozygous variants in the TTN gene. The co-occurrence of predicted deleterious SRPK3/TTN variants was not seen among 76,702 healthy male individuals, and statistical modeling strongly supported digenic inheritance as the best-fitting model. Furthermore, double-mutant zebrafish (srpk3−/−; ttn.1+/−) replicated the myopathic phenotype and showed myofibrillar disorganization. Transcriptome data suggest that the interaction of srpk3 and ttn.1 in zebrafish occurs at a post-transcriptional level. We propose that digenic inheritance of deleterious changes impacting both the protein kinase SRPK3 and the giant muscle protein titin causes a skeletal myopathy and might serve as a model for other genetic diseases.

Original languageEnglish
Pages (from-to)395-407
Number of pages13
JournalNature Genetics
Volume56
Issue number3
DOIs
Publication statusPublished - Mar 2024

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