Regulation of translation initiation by RNA binding proteins

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Abstract

RNA binding proteins are capable of regulating translation initiation by a variety of mechanisms. Although the vast majority of these regulatory mechanisms involve translational repression, one example of translational activation has been characterized in detail. The RNA recognition targets of these regulatory proteins exhibit a wide range in structural complexity, with some proteins recognizing complex pseudoknot structures and others binding to simple RNA hairpins and/or short repeated single-stranded sequences. In some instances the bound protein directly competes with ribosome binding, and in other instances the bound protein promotes formation of an RNA structure that inhibits ribosome binding. Examples also exist in which the bound protein traps the ribosome in a complex that is incapable of initiating translation.

Original languageEnglish (US)
Pages (from-to)27-44
Number of pages18
JournalAnnual Review of Microbiology
Volume63
DOIs
StatePublished - Oct 2009

All Science Journal Classification (ASJC) codes

  • Microbiology

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