Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation

Regulation of gene expression in response to various biological processes, including extracellular stimulation and environmental adaptation, requires nascent mRNA synthesis and translation. Simultaneous analysis of the coordinated regulation of dynamic mRNA synthesis and translation using the same e...

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Main Authors: Hirotatsu Imai, Akio Yamashita
Format: Article
Language:English
Published: Bio-protocol LLC 2024-10-01
Series:Bio-Protocol
Online Access:https://bio-protocol.org/en/bpdetail?id=5091&type=0
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author Hirotatsu Imai
Akio Yamashita
author_facet Hirotatsu Imai
Akio Yamashita
author_sort Hirotatsu Imai
collection DOAJ
description Regulation of gene expression in response to various biological processes, including extracellular stimulation and environmental adaptation, requires nascent mRNA synthesis and translation. Simultaneous analysis of the coordinated regulation of dynamic mRNA synthesis and translation using the same experiment remains a major challenge in the field. Here, we describe a step-by-step protocol for the simultaneous measurement of transcription of nascent mRNA and its translation at the gene level during the acute unfolded protein response (UPR) in HEK293 cells by combining 4-thiouridine metabolic mRNA labeling with translational ribosome affinity purification (TRAP) using a monoclonal antibody against evolutionarily conserved ribosomal P-stalk proteins (P-TRAP). Since P-TRAP captures full-length RNAs bound to ribosomes, it is compatible with 3' mRNA-seq, which analyzes the uridine-rich 3' UTRs of polyadenylated RNAs, allowing robust quantification of T>C conversions. Our nascent P-TRAP (nP-TRAP) method, in which P-TRAP is combined with metabolic mRNA labeling, can serve as a simple and powerful tool to analyze the coordinated regulation of transcription and translation of individual genes in cultured cells.
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spelling doaj-art-0455e752afee4d3ba9d48c672180baa62025-08-20T02:35:30ZengBio-protocol LLCBio-Protocol2331-83252024-10-01142010.21769/BioProtoc.5091Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA TranslationHirotatsu Imai0Akio Yamashita1Department of Investigative Medicine, University of the Ryukyus, Uehara 207, Okinawa, JapanDepartment of Investigative Medicine, University of the Ryukyus, Uehara 207, Okinawa, JapanRegulation of gene expression in response to various biological processes, including extracellular stimulation and environmental adaptation, requires nascent mRNA synthesis and translation. Simultaneous analysis of the coordinated regulation of dynamic mRNA synthesis and translation using the same experiment remains a major challenge in the field. Here, we describe a step-by-step protocol for the simultaneous measurement of transcription of nascent mRNA and its translation at the gene level during the acute unfolded protein response (UPR) in HEK293 cells by combining 4-thiouridine metabolic mRNA labeling with translational ribosome affinity purification (TRAP) using a monoclonal antibody against evolutionarily conserved ribosomal P-stalk proteins (P-TRAP). Since P-TRAP captures full-length RNAs bound to ribosomes, it is compatible with 3' mRNA-seq, which analyzes the uridine-rich 3' UTRs of polyadenylated RNAs, allowing robust quantification of T>C conversions. Our nascent P-TRAP (nP-TRAP) method, in which P-TRAP is combined with metabolic mRNA labeling, can serve as a simple and powerful tool to analyze the coordinated regulation of transcription and translation of individual genes in cultured cells.https://bio-protocol.org/en/bpdetail?id=5091&type=0
spellingShingle Hirotatsu Imai
Akio Yamashita
Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
Bio-Protocol
title Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
title_full Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
title_fullStr Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
title_full_unstemmed Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
title_short Metabolic RNA Labeling and Translating Ribosome Affinity Purification for Measurement of Nascent RNA Translation
title_sort metabolic rna labeling and translating ribosome affinity purification for measurement of nascent rna translation
url https://bio-protocol.org/en/bpdetail?id=5091&type=0
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