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Updated: Aug 9, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
BRAF and MEK mutations make a late entrance
Nick Duesbery1, George Vande Woude
1Van Andel Institute, 333 Bostwick Avenue NE, Grand Rapids, MI 49503, USA. nick.duesbery@vai.org
Germline mutations in KRAS, BRAF, and MEK1/2 genes, previously thought to cause embryonic death, are surprisingly linked to cardio-facio-cutaneous (CFC) syndrome, revealing their role in human development.
Area of Science:
- Molecular Biology
- Genetics
- Developmental Biology
Background:
- KRAS, BRAF, and MEK1/2 are key signaling partners in the MAPK pathway.
- These proteins are crucial for embryonic development and implicated in tumor progression when dysregulated.
Purpose of the Study:
- To investigate the unexpected association between germline mutations in KRAS, BRAF, and MEK1/2 genes and developmental syndromes.
- To understand the role of these genes in human development beyond their known functions.
Main Methods:
- Analysis of germline mutations in KRAS, BRAF, and MEK1/2 genes.
- Clinical evaluation of patients with cardio-facio-cutaneous (CFC) syndrome.
Main Results:
- Germline mutations in KRAS, BRAF, and MEK1/2 genes are associated with cardio-facio-cutaneous (CFC) syndrome.
- Contrary to expectations, these mutations do not lead to embryonic lethality but cause specific developmental abnormalities.
Conclusions:
- Germline mutations in KRAS, BRAF, and MEK1/2 can cause specific developmental syndromes like CFC syndrome.
- This finding opens new avenues for research into the developmental roles of these proteins and their involvement in cancer.
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