J Pediatr Genet 2018; 07(03): 130-133
DOI: 10.1055/s-0038-1641177
Case Report
Georg Thieme Verlag KG Stuttgart · New York

Report of the Third Family with Multiple Mitochondrial Dysfunctions Syndrome 5 Caused by the Founder Variant p.(Glu87Lys) in ISCA1

Anju Shukla
1   Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
,
Parneet Kaur
1   Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
,
Katta M. Girisha
1   Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
› Author Affiliations
Further Information

Publication History

30 December 2017

28 February 2018

Publication Date:
05 April 2018 (online)

Abstract

Iron-sulfur cluster assembly 1 (ISCA1) is one of the essential proteins operating in the mitochondrial iron-sulfur (Fe-S) cluster biogenesis pathway. We reported the variant c.259G > A [p.(Glu87Lys)] in homozygous state in exon 4 of the ISCA1 gene as the likely cause of multiple mitochondrial dysfunction syndrome 5 in a previous publication. We now report the third patient with the same phenotype and variant, further supporting the possibility of a founder event. Our observation confirms the clinical presentation associated with a probable founder variant in this condition.

Supplementary Material

 
  • References

  • 1 Cózar-Castellano I, del Valle Machargo M, Trujillo E. , et al. hIscA: a protein implicated in the biogenesis of iron-sulfur clusters. Biochim Biophys Acta 2004; 1700 (02) 179-188
  • 2 Song D, Tu Z, Lee FS. Human ISCA1 interacts with IOP1/NARFL and functions in both cytosolic and mitochondrial iron-sulfur protein biogenesis. J Biol Chem 2009; 284 (51) 35297-35307
  • 3 Sheftel AD, Wilbrecht C, Stehling O. , et al. The human mitochondrial ISCA1, ISCA2, and IBA57 proteins are required for [4Fe-4S] protein maturation. Mol Biol Cell 2012; 23 (07) 1157-1166
  • 4 Shukla A, Hebbar M, Srivastava A. , et al. Homozygous p.(Glu87Lys) variant in ISCA1 is associated with a multiple mitochondrial dysfunctions syndrome. J Hum Genet 2017; 62 (07) 723-727
  • 5 Vigeland MD, Gjøtterud KS, Selmer KK. FILTUS: a desktop GUI for fast and efficient detection of disease-causing variants, including a novel autozygosity detector. Bioinformatics 2016; 32 (10) 1592-1594
  • 6 Thorvaldsdóttir H, Robinson JT, Mesirov JP. Integrative Genomics Viewer (IGV): high-performance genomics data visualization and exploration. Brief Bioinform 2013; 14 (02) 178-192
  • 7 Brancaccio D, Gallo A, Mikolajczyk M. , et al. Formation of [4Fe-4S] clusters in the mitochondrial iron-sulfur cluster assembly machinery. J Am Chem Soc 2014; 136 (46) 16240-16250
  • 8 Netz DJ, Mascarenhas J, Stehling O, Pierik AJ, Lill R. Maturation of cytosolic and nuclear iron-sulfur proteins. Trends Cell Biol 2014; 24 (05) 303-312
  • 9 Beilschmidt LK, Ollagnier de Choudens S, Fournier M. , et al. ISCA1 is essential for mitochondrial Fe4S4biogenesis in vivo. Nat Commun 2017; 8: 15124
  • 10 Schwarz JM, Rödelsperger C, Schuelke M, Seelow D. MutationTaster evaluates disease-causing potential of sequence alterations. Nat Methods 2010; 7 (08) 575-576
  • 11 Adzhubei IA, Schmidt S, Peshkin L. , et al. A method and server for predicting damaging missense mutations. Nat Methods 2010; 7 (04) 248-249
  • 12 Kumar P, Henikoff S, Ng PC. Predicting the effects of coding non-synonymous variants on protein function using the SIFT algorithm. Nat Protoc 2009; 4 (07) 1073-1081