Familial STAG2 germline mutation defines a new human cohesinopathy

Autor: Fernanda C. Soardi, Alice Machado-Silva, Natália D. Linhares, Ge Zheng, Qianhui Qu, Heloísa B. Pena, Thaís M. M. Martins, Helaine G. S. Vieira, Núbia B. Pereira, Raquel C. Melo-Minardi, Carolina C. Gomes, Ricardo S. Gomez, Dawidson A. Gomes, Douglas E. V. Pires, David B. Ascher, Hongtao Yu, Sérgio D. J. Pena
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: npj Genomic Medicine, Vol 2, Iss 1, Pp 1-11 (2017)
Druh dokumentu: article
ISSN: 2056-7944
DOI: 10.1038/s41525-017-0009-4
Popis: Intellectual disability: mutation in cell cycle protein causes developmental disease A newly discovered developmental disease is characterized by mutations in a subunit of the cohesin protein involved in cell division. A team led by Sérgio Pena from GENE—Núcleo de Genética Médica, Brazil, and Hongtao Yu from the University of Texas Southwestern Medical Center, USA, describe a Brazilian family with five male relatives, all with intellectual deficiency, short stature, and other abnormalities. The family tree pointed toward an X-linked pattern of inheritance, so the researchers performed a network analysis of 24 genes on the X chromosome known to contribute to mental retardation. They found that all five individuals had a mutation in a gene called STAG2, which encodes a subunit of cohesin. The mutant STAG2 did not bind properly to other cohesin subunits in human cells, and patient-derived cells exhibited altered cell cycle profiles. The researchers propose calling the disease “STAG2-related X-linked intellectual deficiency”.
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