Germline-Activating RRAS2 Mutations Cause Noonan Syndrome
نویسندگان
چکیده
منابع مشابه
Effects of germline mutations in the Ras/MAPK signaling pathway on adaptive behavior: cardiofaciocutaneous syndrome and Noonan syndrome.
Cardiofaciocutaneous syndrome (CFC) and Noonan syndrome (NS) are two phenotypically overlapping genetic disorders whose underlying molecular etiologies affect a common signaling pathway. Mutations in the BRAF, MEK1, and MEK2 genes cause most cases of CFC and mutations in PTPN11, SOS1, KRAS, and RAF1 typically cause NS. Although both syndromes are associated with developmental delays of varying ...
متن کاملNoonan syndrome gain-of-function mutations in NRAS cause zebrafish gastrulation defects
Noonan syndrome is a relatively common developmental disorder that is characterized by reduced growth, wide-set eyes and congenital heart defects. Noonan syndrome is associated with dysregulation of the Ras-mitogen-activated-protein-kinase (MAPK) signaling pathway. Recently, two mutations in NRAS were reported to be associated with Noonan syndrome, T50I and G60E. Here, we report a mutation in N...
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OBJECTIVE Congenital sodium diarrhoea (CSD) refers to a form of secretory diarrhoea with intrauterine onset and high faecal losses of sodium without congenital malformations. The molecular basis for CSD remains unknown. We clinically characterised a cohort of infants with CSD and set out to identify disease-causing mutations by genome-wide genetic testing. DESIGN We performed whole-exome sequ...
متن کاملGermline TP53 mutations and Li-Fraumeni syndrome.
There are now reports of nearly 250 independent germline TP53 (p53) mutations in over 100 publications. Such mutations are typically associated with Li-Fraumeni or Li-Fraumeni-like syndrome, although many have been identified in cohorts of patients with tumors considered to be typical of LFS. In general, the spectrum of mutations that has been detected in the germline reflects that found in tum...
متن کاملNoonan syndrome.
Noonan syndrome is a common autosomal dominant condition caused by multiple genes in the RasMAPK pathway. The adult phenotype can be extremely subtle, and many adults are diagnosed only after the birth of a more obviously affected child. Whether diagnosis is made in childhood or adulthood, initial and ongoing evaluation of many systems can have considerable health benefits.
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ژورنال
عنوان ژورنال: The American Journal of Human Genetics
سال: 2019
ISSN: 0002-9297
DOI: 10.1016/j.ajhg.2019.04.014