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Molecular basis of mRNA delivery to the bacterial ribosome
Open accessPublished version of a preprint
Abstract
Protein synthesis begins with the formation of a ribosome-messenger RNA (mRNA) complex. In bacteria, the small ribosomal subunit (30 S ) is recruited to many mRNAs through base pairing with the Shine-Dalgarno (SD) sequence and RNA binding by ribosomal protein bS1. Translation can initiate on nascent mRNAs, and RNA polymerase (RNAP) can promote the recruitment of the pioneering 30 S . Here, we examined 30 S recruitment to nascent mRNAs using cryo–electron microscopy, single-molecule fluorescence colocalization, and in-cell cross-linking mass spectrometry. We show that bS1 delivers the mRNA to the ribosome for SD duplex formation and 30 S activation. Additionally, bS1 and RNAP stimulate translation initiation. Our work provides a mechanistic framework for how the SD duplex, ribosomal proteins, and RNAP cooperate in 30 S recruitment to mRNAs and establish transcription-translation coupling.
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Highly accurate protein structure prediction with AlphaFold
Jumper, J., Evans, R., Pritzel, A., Green, T., Figurnov, M., Ronneberger, O., Tunyasuvunakool, K., Bates, R., Žídek, A., Potapenko, A., et al. (2021) · Nature · doi:10.1038/s41586-021-03819-2 · Cited by 43,764
Khalifa, A. A. Z., Ichikawa, M., Dai, D., Kubo, S., Black, C. S., Peri, K., McAlear, T. S., Veyron, S., Yang, S. K., Vargas, J., et al. (2020) · eLife · doi:10.7554/elife.52760 · Cited by 1,676
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Metadata
- Authors
- Webster, M. W., Chauvier, A., Rahil, H., Graziadei, A., Charles, K., Miropolskaya, N., Takacs, M., Saint-André, C., Rappsilber, J., Walter, N. G., & Weixlbaumer, A.
- Affiliations
- John Innes Centre (GB)
- University of Michigan (US)
- Centre National de la Recherche Scientifique (FR)
- Technische Universität Berlin (DE)
- Department of Integrated Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch Cedex, France.
- Wellcome Centre for Cell Biology (GB)
- Corresponding author
- Webster, Michael W.
- Chauvier, Adrien
- Rahil, Huma
- Graziadei, Andrea
- Weixlbaumer, Albert
- ORCID
- Venue
- Science
- Published
- 2024-11-29
- Volume
- 386
- Issue
- 6725
- Pages
- eado8476-eado8476
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- PMC
- PMC13040446
- OpenAlex
- W4404810290
- Cited by
- 32
- References
- 2
- Citations by year
- 2026: 15 · 2025: 15 · 2024: 2
- FWCI
- 4.36
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by
- Locations
- Science (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed Central (submittedVersion, cc-by-nc-nd)
- HAL (submittedVersion, other-oa)
- Funders
- Wellcome Trust (203149, ANR-10-LABX-0030-INRT)
- Agence Nationale de la Recherche (ANR-10-IDEX-0002, ANR-10- INBS-05, ANR-10-IDEX, ANR-10-LABX-0030, ANR-10-IDEX0002-02, ANR-10, ANR-10-INBS-0005)
- French Infrastructure for Integrated Structural Biology (ANR‐10‐LABX‐0030‐INRT, ANR-10-INBS-0.5, ANR-10-IDEX-0002-02)
- National Institutes of Health (ANR-10-LABX-0030-INRT)
- Biotechnology and Biological Sciences Research Council (BBP0135111, BB/P013511, 203149, BB/X01102X/1, BBS/E/JI/230002B, BB/X01102X)
- National Institute of General Medical Sciences (R35GM131922)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA modifications and cancer
- Keywords
- Shine-Dalgarno sequence, ribosomal protein S1, RNA polymerase, translation initiation, transcription-translation coupling, nascent mRNA, base pairing, ribosome-mRNA complex
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