Heterozygous variants that disturb the transcriptional repressor activity of FOXP4 cause a developmental disorder with speech/language delays and multiple congenital abnormalities.
Lot Snijders BlokArianna VinoJoery den HoedHunter R UnderhillDanielle MonteilHong LiFrancis Jeshira Reynoso SantosWendy K ChungMichelle D AmaralRhonda E SchnurTeresa Santiago-SimYue SiHan G BrunnerTjitske KleefstraSimon E FisherPublished in: Genetics in medicine : official journal of the American College of Medical Genetics (2020)
Collectively, our findings show that heterozygous loss-of-function variants in FOXP4 are associated with an autosomal dominant neurodevelopmental disorder with speech/language delays, growth defects, and variable congenital abnormalities.