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Effect of a 2-methylthio-N6-isopentenyladenosine deficiency on peptidyl-tRNA release in Escherichia coli



Effect of a 2-methylthio-N6-isopentenyladenosine deficiency on peptidyl-tRNA release in Escherichia coli



Journal of Bacteriology 165(2): 608-611



We examined the effect of miaA, a mutation conferring a deficiency in 2-methylthio-N6-isopentenyladenosine in tRNA, on patterns of peptidyl-tRNA accumulation in Escherichia coli strains deficient in peptidyl-tRNA hydrolase activity. A specific reduction in peptidyl-tRNA accumulation was seen for tRNAs which normally contain the 2-methylthio-N6-isopentenyladenosine modification. These results provide new evidence in support of the ribosome editor model, which links peptidyl-tRNA release to mistranslation events.

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Accession: 017870372

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PMID: 3511038


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