Title : Antiapoptotic Cdc42 mutants are potent activators of cellular transformation.

Pub. Date : 2002 Oct 15

PMID : 12369824






4 Functional Relationships(s)
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1 While GTPase-defective forms of Cdc42 inhibit cell growth, a mutation [Cdc42(F28L)] that allows the constitutive exchange of GDP for GTP and is GTPase-competent induces cellular transformation. Guanosine Diphosphate cell division cycle 42 Homo sapiens
2 These results suggest that Cdc42 must cycle between its GTP- and GDP-bound states to stimulate cell growth. Guanosine Diphosphate cell division cycle 42 Homo sapiens
3 The Cdc42(D118N) protein exchanges GDP for GTP more rapidly than wild-type Cdc42, but significantly more slowly than the Cdc42(F28L) mutant. Guanosine Diphosphate cell division cycle 42 Homo sapiens
4 Thus, mutations that combine some capacity for cycling between the GTP- and GDP-bound states with increased survival against apoptotic signals yield Cdc42 molecules with the maximum capability for inducing cellular transformation. Guanosine Diphosphate cell division cycle 42 Homo sapiens