Abstract:
:We report the clinical and biochemical findings from a patient who presented with Bosch-Boonstra-Schaaf optic atrophy syndrome (BBSOAS), an autosomal-dominant disorder characterized by optic atrophy, developmental delay and intellectual disability. In addition, the patient also displays hypotonia, stroke-like episodes, and complex IV deficiency of the mitochondrial respiratory chain. Whole-exome sequencing (WES) uncovered a novel heterozygous mutation in the NR2F1 gene (NM_005654:c.286A>G:p.Lys96Glu) that encodes for the COUP transcription factor 1 protein (COUP-TF1). Loss-of-function mutations in this protein have been associated with BBSOAS, and a luciferase reporter assay showed that this variant, in the zinc-finger DNA-binding domain (DBD) of COUP-TF1 protein, impairs its transcriptional activity. The additional features of this patient are more related with mitochondrial diseases that with BBSOAS, indicating a mitochondrial involvement. Finally, our data expand both the genetic and phenotypic spectrum associated with NR2F1 gene mutations.
journal_name
J Hum Genetjournal_title
Journal of human geneticsauthors
Martín-Hernández E,Rodríguez-García ME,Chen CA,Cotrina-Vinagre FJ,Carnicero-Rodríguez P,Bellusci M,Schaaf CP,Martínez-Azorín Fdoi
10.1038/s10038-017-0398-3subject
Has Abstractpub_date
2018-04-01 00:00:00pages
525-528issue
4eissn
1434-5161issn
1435-232Xpii
10.1038/s10038-017-0398-3journal_volume
63pub_type
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