Cited by 605Protein Tyrosine PhosphatasesProtein Kinase Regulation and GTPase SignalingGenomics and Rare Diseases

Germline gain-of-function mutations in SOS1 cause Noonan syndrome

Roberts, Amy E, Araki, Toshiyuki, Swanson, Kenneth D, Montgomery, Kate T, Schiripo, Taryn A, Joshi, Victoria A, Li, Li, Yassin, Yosuf +3 more·2007·Nature Genetics

Abstract

Noonan syndrome, the most common single-gene cause of congenital heart disease, is characterized by short stature, characteristic facies, learning problems and leukemia predisposition. Gain-of-function mutations in PTPN11, encoding the tyrosine phosphatase SHP2, cause approximately 50% of Noonan syndrome cases. SHP2 is required for RAS-ERK MAP kinase (MAPK) cascade activation, and Noonan syndrome mutants enhance ERK activation ex vivo and in mice. KRAS mutations account for <5% of cases of Noonan syndrome, but the gene(s) responsible for the remainder are unknown. We identified missense mutations in SOS1, which encodes an essential RAS guanine nucleotide-exchange factor (RAS-GEF), in approximately 20% of cases of Noonan syndrome without PTPN11 mutation. The prevalence of specific cardiac defects differs in SOS1 mutation-associated Noonan syndrome. Noonan syndrome-associated SOS1 mutations are hypermorphs encoding products that enhance RAS and ERK activation. Our results identify SOS1 mutants as a major cause of Noonan syndrome, representing the first example of activating GEF mutations associated with human disease and providing new insights into RAS-GEF regulation.

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Crossref · 10.1038/ng1926

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  • SOS1, under selection in domesticated foxes, affects MAPK signaling, bringing about Noonan phenotypes.

    “Upstream of BRAF, SOS1, under selection in domesticated foxes, affects MAPK signaling, bringing about Noonan phenotypes [74].”

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Authors
Roberts, A. E., Araki, T., Swanson, K. D., Montgomery, K. T., Schiripo, T. A., Joshi, V. A., Li, L., Yassin, Y., Tamburino, A. M., Neel, B. G., & Kucherlapati, R. S.
Affiliations
  • Harvard University (US)
  • Beth Israel Deaconess Medical Center (US)
Corresponding author
Neel, Benjamin G
Venue
Nature Genetics
Published
2006-12-03
Volume
39
Issue
1
Pages
70-74
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2068804834
Cited by
605
References
44
Citations by year
2026: 11 · 2025: 10 · 2024: 29 · 2023: 14 · 2022: 27 · 2021: 29 · 2020: 20 · 2019: 28 · 2018: 13 · 2017: 24 · 2016: 20 · 2015: 21 · 2014: 30 · 2013: 32 · 2012: 37
FWCI
20.96
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (R37CA49152, R37CA049152)
  • National Institute of Dental and Craniofacial Research (R01DE016140, DE-16140)
  • National Center for Research Resources (M01-RR02172, M01RR002172)
  • NIH Clinical Center
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
Noonan syndrome, SOS1, gain-of-function mutations, Ras guanine nucleotide exchange factor, SHP2, PTPN11, congenital heart disease, missense mutations, Ras activation, leukemia predisposition
MeSH terms
Adolescent, Adult, Child, Child, Preschool, DNA Mutational Analysis, Female, Genetic Testing, Humans, Infant, Male, Models, Biological, Models, Molecular, Noonan Syndrome, Protein Tyrosine Phosphatases, Germ-Line Mutation, SOS1 Protein, Intracellular Signaling Peptides and Proteins, Protein Tyrosine Phosphatase, Non-Receptor Type 11

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