title: Quantitative study of interaction of deacylated tRNA with Escherichia coli ribosomes. Role of 50 S subunits in formation of the E site.
abstract: The 30 S subunit contains 2 sites for tRNA binding (Phe-tRNA, AcPhe-tRNA, tRNAPheOH) with the functional properties of D and A sites of the 70 S ribosome after attachment of 50 S subunit. The third (E) site specific for deacylated tRNA is introduced into 70 S ribosome by its 50 S subunit. The E-site binding of tRNAPheOH is not sensitive to either tetracycline and edeine, and practically codon-independent. The affinity constant of tRNAPheOH for the E site is 2-3 orders of magnitude lower than that for the D site.
mesh_terms: D001665:Binding Sites / Q000187:drug effects; D004486:Edeine / Q000494:pharmacology; D004926:Escherichia coli / Q000378:metabolism*; D012343:RNA, Transfer / Q000378:metabolism*; D012270:Ribosomes / Q000378:metabolism*; D013752:Tetracycline / Q000494:pharmacology
chemical_list: D004486:Edeine; D012343:RNA, Transfer; D013752:Tetracycline