The tumor-suppressive small GTPase DiRas1 binds the noncanonical guanine nucleotide exchange factor SmgGDS and antagonizes SmgGDS interactions with oncogenic small GTPases.

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Ref. 40 was missing from the reference list. The information for Ref. 40 should be as follows: Ogita, Y., Egami, S., Ebihara, A., Ueda, N., Katada, T., and Kontani, K. (2015) Di-Ras2 protein forms a complex with SmgGDS protein in brain cytosol in order to be in a low affinity state for guanine nucleotides. J. Biol. Chem. 290, 20245–20256.