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Grb7 is a member of a family of molecular adapters which are able to contribute positively but also negatively to signal transduction and whose precise roles remain obscure. Rnd1 is a member of the Rho family, but, as opposed to usual GTPases, it is constitutively bound to GTP. We show here that Rnd1 and Grb7 interact, in two-hybrid assays, in vitro, and in pull-down experiments performed with SK-BR3,...
The yeast transcription factors Pdr1 and Pdr3 control pleiotropic drug resistance (PDR) development, since they regulate expression of ATP-binding cassette (ABC) drug efflux pumps through binding to cis-acting sites known as PDREs ( PD R r esponsive e lements). In this report, we show by Northern...
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