RT Journal Article SR Electronic T1 RNA degradation analysis reveals ribosome dynamics in complex microbiome samples JF bioRxiv FD Cold Spring Harbor Laboratory SP 2021.04.08.439066 DO 10.1101/2021.04.08.439066 A1 Susanne Huch A1 Lilit Nersisyan A1 Maria Ropat A1 Donal Barret A1 Jing Wang A1 Jaime Huerta-Cepas A1 Wu Wei A1 Lars M Steinmetz A1 Lars Engstrand A1 Vicent Pelechano YR 2021 UL http://biorxiv.org/content/early/2021/04/10/2021.04.08.439066.abstract AB Post-transcriptional regulation is essential for life, yet we are currently unable to investigate its role in complex microbiome samples. Here we discover that co-translational mRNA degradation, where the degradation machinery follows the last translating ribosome, is conserved across prokaryotes. By investigating 5’P mRNA decay intermediates, we obtain in vivo ribosome protection information that allows the study of codon and gene specific ribosome stalling in response to stress and drug treatment at single nucleotide resolution. We use this approach to investigate in vivo species-specific ribosome footprints of clinical and environmental microbiomes and show for the first time that ribosome protection patterns can be used to phenotype microbiome perturbations. Our work paves the way for the study of the metatranslatome, and enables the investigation of fast, species-specific, post-transcriptional responses to environmental and chemical perturbations in unculturable microbial communities.Competing Interest StatementVP has filed a patent application regarding part of the work described in this manuscript.