Initiation factor IF2, thiostrepton and micrococcin prevent the binding of elongation factor G to the Escherichia coli ribosome.

Abstract excerpt

The bacterial translational GTPases (initiation factor IF2, elongation factors EF-G and EF-Tu and release factor RF3) are involved in all stages of translation, and evidence indicates that they bind to overlapping sites on the ribosome, whereupon GTP hydrolysis is triggered. We provide evidence for a common ribosomal binding site for EF-G and IF2. IF2 prevents the binding of EF-G to the ribosome, as shown by...

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