Recent structural and cell biological studies show that the previously uncharacterized PX domain can bind both phospholipids and SH3 domains, suggesting that this module may play a critical role in coordinating membrane localization and protein complex assembly during cell signaling.
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Prehoda, K., Lim, W. The double life of PX domains. Nat Struct Mol Biol 8, 570–572 (2001). https://doi.org/10.1038/89586
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DOI: https://doi.org/10.1038/89586