Ribosomal stalling landscapes revealed by high-throughput inverse toeprinting of mRNA libraries.

ABSTRACT: Although it is known that the amino acid sequence of a nascent polypeptide can impact its rate of translation, dedicated tools to systematically investigate this process are lacking. Here, we present high-throughput inverse toeprinting, a method to identify peptide-encoding transcripts that induce ribosomal stalling in vitro. Unlike ribosome profiling, inverse toeprinting protects the entire coding region upstream of a stalled ribosome, making it possible to work with random or focused transcript libraries that efficiently sample the sequence space. We used inverse toeprinting to characterize the stalling landscapes of free and drug-bound Escherichia coli ribosomes, obtaining a comprehensive list of arrest motifs that were validated in vivo, along with a quantitative measure of thei

SUBMITTER: Seip B 

PROVIDER: S-EPMC6238534 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature