Abstract
New work shows that activation of the Ras guanine nucleotide exchange factor SOS is dependent upon the membrane density of phosphatidylinositol-4,5- bisphosphate (PIP2) and GTP-bound Ras. These signals synergize to release the autoinhibitory DH-PH domain, while the histone domain fine-tunes SOS activation in response to PIP2.
Original language | English |
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Pages (from-to) | 538-540 |
Number of pages | 3 |
Journal | Nature Structural & Molecular Biology |
Volume | 15 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jun 2008 |