News and Views


Nature Genetics 39, 8 - 9 (2007)
doi:10.1038/ng0107-8

Sending out an SOS

Kevin Shannon1 & Gideon Bollag1

  1. Kevin Shannon is in the Department of Pediatrics and Comprehensive Cancer Center, University of California at San Francisco, 513 Parnassus Avenue, San Francisco, California 94143, USA.
  2. Gideon Bollag is at Plexxikon, Inc., 91 Bolivar Drive, Berkeley, California 94710, USA. e-mail: shannonk@peds.ucsf.edu.


Noonan syndrome is a disease caused by aberrant signaling through the Ras GTPase, yet the underlying causal mutations remain unknown in many affected individuals. Two papers now identify gain-of-function mutations in the Ras nucleotide exchange factor SOS1 as a new player in this common developmental disorder.

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