3GCG:
reference: Structural insights into host GTPase isoform selection by a family of bacterial GEF mimics., Huang Z, Sutton SE, Wallenfang AJ, Orchard RC, Wu X, Feng Y, Chai J, Alto NM, Nat Struct Mol Biol. 2009 Aug;16(8):853-60. Epub 2009 Jul 20. PMID: 19620963

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