Previous Article Next Article Table of Contents Science, Vol.275, No.5296, 42-43, 1997 DOI10.1126/science.275.5296.42 Export Citation Signal-Transduction - There Are Gaps and There Are Gaps Iyengar R Keywords:SACCHAROMYCES-CEREVISIAE;MECHANISM;GTPASE;ACTIVATION;HYDROLYSIS;MUTANTS;SUBUNIT Please enable JavaScript to view the comments powered by Disqus.