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http://www.nature.com/nsmb/journal/v7/n2/pdf/nsb0200_122.pdf (Any fulltext)
http://dx.doi.org/10.1038/72392 (Any fulltext)
Scheffzek, K., Stephan, I., Jensen, O. N., Illenberger, D., & Gierschik, P. (2000). The Rac-RhoGDI complex and the structural basis for the regulation of Rho proteins by RhoGDI. Nature structural biology, 7(2), 122-126. doi:10.1038/72392.