Human genetics · 2016
De novo missense variants in PPP1CB are associated with intellectual disability and congenital heart disease.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Ma Lijiang, Bayram Yavuz, McLaughlin Heather M, Cho Megan T, Krokosky Alyson, Turner Clesson E, Lindstrom Kristin, Bupp Caleb P, Mayberry Katey, Mu Weiyi, Bodurtha Joann, Weinstein Veronique, Zadeh Neda, Alcaraz Wendy, Powis Zöe, Shao Yunru, Scott Daryl A, Lewis Andrea M, White Janson J, Jhangiani Shalani N, Gulec Elif Yilmaz, Lalani Seema R, Lupski James R, Retterer Kyle, Schnur Rhonda E, Wentzensen Ingrid M, Bale Sherri, Chung Wendy K
Аннотация
Intellectual disabilities are genetically heterogeneous and can be associated with congenital anomalies. Using whole-exome sequencing (WES), we identified five different de novo missense variants in the protein phosphatase-1 catalytic subunit beta (PPP1CB) gene in eight unrelated individuals who share an overlapping phenotype of dysmorphic features, macrocephaly, developmental delay or intellectual disability (ID), congenital heart disease, short stature, and skeletal and connective tissue abnormalities. Protein phosphatase-1 (PP1) is a serine/threonine-specific protein phosphatase involved in the dephosphorylation of a variety of proteins. The PPP1CB gene encodes a PP1 subunit that regulates the level of protein phosphorylation. All five altered amino acids we observed are highly conserved among the PP1 subunit family, and all are predicted to disrupt PP1 subunit binding and impair dephosphorylation. Our data suggest that our heterozygous de novo PPP1CB pathogenic variants are associated with syndromic intellectual disability.