1U3O:
reference: Regulation of RhoGEF Activity by Intramolecular and Intermolecular SH3 Domain Interactions., Schiller MR, Chakrabarti K, King GF, Schiller NI, Eipper BA, Maciejewski MW, J Biol Chem. 2006 Jul 7;281(27):18774-86. Epub 2006 Apr 27. PMID: 16644733

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