Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria

Bacteria produce different amounts of their proteins in response to different conditions. The ability to accurately quantitate the rates of protein synthesis across the genome is an important step toward understanding both underlying regulation and bacterial physiology at a systems level. Ribosome p...

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Main Authors: Johnson, Grace E., Li, Gene-Wei
Other Authors: Massachusetts Institute of Technology. Department of Biology
Format: Article
Language:English
Published: Elsevier 2020
Online Access:https://hdl.handle.net/1721.1/125169
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author Johnson, Grace E.
Li, Gene-Wei
author2 Massachusetts Institute of Technology. Department of Biology
author_facet Massachusetts Institute of Technology. Department of Biology
Johnson, Grace E.
Li, Gene-Wei
author_sort Johnson, Grace E.
collection MIT
description Bacteria produce different amounts of their proteins in response to different conditions. The ability to accurately quantitate the rates of protein synthesis across the genome is an important step toward understanding both underlying regulation and bacterial physiology at a systems level. Ribosome profiling (deep sequencing of ribosome-protected mRNA fragments) enables accurate and high-throughput measurement of such synthesis rates. Ribosomes protect RNAs from nuclease digestion; thus, by collecting and sequencing protected footprints, one can obtain information on the position of every ribosome at the time of cell collection. Assuming ribosomes go on to translate full-length proteins, the density of ribosomes across an ORF can be used to determine protein synthesis rates. Here we outline a step-by-step protocol and discuss the steps where variability and bias may be introduced, including ways to minimize it.
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spelling mit-1721.1/1251692022-09-27T16:18:56Z Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria Johnson, Grace E. Li, Gene-Wei Massachusetts Institute of Technology. Department of Biology Bacteria produce different amounts of their proteins in response to different conditions. The ability to accurately quantitate the rates of protein synthesis across the genome is an important step toward understanding both underlying regulation and bacterial physiology at a systems level. Ribosome profiling (deep sequencing of ribosome-protected mRNA fragments) enables accurate and high-throughput measurement of such synthesis rates. Ribosomes protect RNAs from nuclease digestion; thus, by collecting and sequencing protected footprints, one can obtain information on the position of every ribosome at the time of cell collection. Assuming ribosomes go on to translate full-length proteins, the density of ribosomes across an ORF can be used to determine protein synthesis rates. Here we outline a step-by-step protocol and discuss the steps where variability and bias may be introduced, including ways to minimize it. 2020-05-12T12:51:33Z 2020-05-12T12:51:33Z 2018-12 2020-01-23T17:36:38Z Article http://purl.org/eprint/type/JournalArticle 1557-7988 https://hdl.handle.net/1721.1/125169 Johnson, Grace E. and Gene-Wei Li. “Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria.” Methods in enzymology 612 (2018): 225-249 © 2018 The Author(s) en 10.1016/bs.mie.2018.08.031 Methods in enzymology Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier PMC
spellingShingle Johnson, Grace E.
Li, Gene-Wei
Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title_full Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title_fullStr Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title_full_unstemmed Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title_short Genome-Wide Quantitation of Protein Synthesis Rates in Bacteria
title_sort genome wide quantitation of protein synthesis rates in bacteria
url https://hdl.handle.net/1721.1/125169
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