Cited by 158Protein Tyrosine PhosphatasesProtein Kinase Regulation and GTPase SignalingGenomics and Rare Diseases

Germline KRAS mutations cause aberrant biochemical and physical properties leading to developmental disorders

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Gremer, Lothar, Merbitz-Zahradnik, Torsten, Dvorsky, Radovan, Cirstea, Ion C., Kratz, Christian Peter, Zenker, Martin, Wittinghofer, Alfred, Ahmadian, Mohammad Reza·2011·Human Mutation

Abstract

The KRAS gene is the most common locus for somatic gain-of-function mutations in human cancer. Germline KRAS mutations were shown recently to be associated with developmental disorders, including Noonan syndrome (NS), cardio-facio-cutaneous syndrome (CFCS), and Costello syndrome (CS). The molecular basis of this broad phenotypic variability has in part remained elusive so far. Here, we comprehensively analyzed the biochemical and structural features of ten germline KRAS mutations using physical and cellular biochemistry. According to their distinct biochemical and structural alterations, the mutants can be grouped into five distinct classes, four of which markedly differ from RAS oncoproteins. Investigated functional alterations comprise the enhancement of intrinsic and guanine nucleotide exchange factor (GEF) catalyzed nucleotide exchange, which is alternatively accompanied by an impaired GTPase-activating protein (GAP) stimulated GTP hydrolysis, an overall loss of functional properties, and a deficiency in effector interaction. In conclusion, our data underscore the important role of RAS in the pathogenesis of the group of related disorders including NS, CFCS, and CS, and provide clues to the high phenotypic variability of patients with germline KRAS mutations.

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  1. Krengel U Struktur und Guanosintriphosphathydrolysemechanismus des C-terminal verkürzten menschlichen Krebsproteins P21-H-RAS Ph.D. thesis 1991 Heidelberg

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Authors
Gremer, L., Merbitz-Zahradnik, T., Dvorsky, R., Cirstea, I. C., Kratz, C. P., Zenker, M., Wittinghofer, A., & Ahmadian, M. R.
Affiliations
  • Max Planck Institute of Molecular Physiology (DE)
  • Heinrich Heine University Düsseldorf (DE)
  • National Institutes of Health (US)
  • University Hospital Magdeburg (DE)
Corresponding author
Ahmadian, Mohammad Reza
Venue
Human Mutation
Published
2010-12-09
Volume
32
Issue
1
Pages
33-43
ISSN
1059-7794 (ISSN-L)
OpenAlex
W2053733865
Cited by
158
References
93
Citations by year
2026: 5 · 2025: 7 · 2024: 18 · 2023: 14 · 2022: 13 · 2021: 9 · 2020: 14 · 2019: 10 · 2018: 8 · 2017: 11 · 2016: 11 · 2015: 8 · 2014: 9 · 2013: 5 · 2012: 8
FWCI
2.74
Type
journal article
Language
en
Open access
Locations
  • Human Mutation (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion, other-oa)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Funders
  • E-Rare
  • Deutsche Forschungsgemeinschaft (AH 92/5-1)
  • Bundesministerium für Bildung und Forschung (01GS08100)
  • National Institutes of Health
  • National Cancer Institute (ZIACP010144)
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, cardiofaciocutaneous syndrome, Costello syndrome, oncogenic Ras, GTPase activity, guanine nucleotide exchange, GTP hydrolysis, phenotypic variability, developmental disorders, protein structure
MeSH terms
Animals, Chlorocebus aethiops, Developmental Disabilities, Ectodermal Dysplasia, Failure to Thrive, Heart Defects, Congenital, Humans, Models, Molecular, Noonan Syndrome, Proto-Oncogene Proteins, Signal Transduction, Proto-Oncogene Proteins p21(ras), Germ-Line Mutation, ras Proteins, Facies, COS Cells, GTPase-Activating Proteins

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