Respiratory chain deficiency in nonmitochondrial disease

  • Angela Pyle
  • , Helen J. Nightingale
  • , Helen Griffin
  • , Angela Abicht
  • , Janbernd Kirschner
  • , Ivo Baric
  • , Mario Cuk
  • , Konstantinos Douroudis
  • , Lea Feder
  • , Markus Kratz
  • , Birgit Czermin
  • , Stephanie Kleinle
  • , Mauro Santibanez-Koref
  • , Veronika Karcagi
  • , Elke Holinski-Feder
  • , Patrick F. Chinnery
  • , Rita Horvath*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Objective: In this study, we report 5 patients with heterogeneous phenotypes and biochemical evidence of respiratory chain (RC) deficiency; however, the molecular diagnosis is not mitochon-drial disease. Methods: The reported patients were identified from a cohort of 60 patients in whom RC enzyme deficiency suggested mitochondrial disease and underwent whole-exome sequencing. Results: Five patients had disease-causing variants in nonmitochondrial disease genes ORAI1, CAPN3, COLQ, EXOSC8, and ANO10, which would have been missed on targeted next-generation panels or on MitoExome analysis. Conclusions: Our data demonstrate that RC abnormalities may be secondary to various cellular processes, including calcium metabolism, neuromuscular transmission, and abnormal messenger RNA degradation.

Original languageEnglish
Article numbere6
JournalNeurology: Genetics
Volume1
Issue number1
DOIs
Publication statusPublished - Jun 2015
Externally publishedYes

Fingerprint

Dive into the research topics of 'Respiratory chain deficiency in nonmitochondrial disease'. Together they form a unique fingerprint.

Cite this