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A structural and dynamic model for the assembly of Replication Protein A on single-stranded DNA

Author

Listed:
  • Luke A. Yates

    (Imperial College London)

  • Ricardo J. Aramayo

    (Imperial College London)

  • Nilisha Pokhrel

    (Marquette University)

  • Colleen C. Caldwell

    (University of Iowa)

  • Joshua A. Kaplan

    (Imperial College London)

  • Rajika L. Perera

    (Imperial College London
    Poseidon LLC)

  • Maria Spies

    (University of Iowa)

  • Edwin Antony

    (Marquette University)

  • Xiaodong Zhang

    (Imperial College London)

Abstract

Replication Protein A (RPA), the major eukaryotic single stranded DNA-binding protein, binds to exposed ssDNA to protect it from nucleases, participates in a myriad of nucleic acid transactions and coordinates the recruitment of other important players. RPA is a heterotrimer and coats long stretches of single-stranded DNA (ssDNA). The precise molecular architecture of the RPA subunits and its DNA binding domains (DBDs) during assembly is poorly understood. Using cryo electron microscopy we obtained a 3D reconstruction of the RPA trimerisation core bound with ssDNA (∼55 kDa) at ∼4.7 Å resolution and a dimeric RPA assembly on ssDNA. FRET-based solution studies reveal dynamic rearrangements of DBDs during coordinated RPA binding and this activity is regulated by phosphorylation at S178 in RPA70. We present a structural model on how dynamic DBDs promote the cooperative assembly of multiple RPAs on long ssDNA.

Suggested Citation

  • Luke A. Yates & Ricardo J. Aramayo & Nilisha Pokhrel & Colleen C. Caldwell & Joshua A. Kaplan & Rajika L. Perera & Maria Spies & Edwin Antony & Xiaodong Zhang, 2018. "A structural and dynamic model for the assembly of Replication Protein A on single-stranded DNA," Nature Communications, Nature, vol. 9(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07883-7
    DOI: 10.1038/s41467-018-07883-7
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    Cited by:

    1. Poonam Roshan & Sahiti Kuppa & Jenna R. Mattice & Vikas Kaushik & Rahul Chadda & Nilisha Pokhrel & Brunda R. Tumala & Aparna Biswas & Brian Bothner & Edwin Antony & Sofia Origanti, 2023. "An Aurora B-RPA signaling axis secures chromosome segregation fidelity," Nature Communications, Nature, vol. 14(1), pages 1-19, December.
    2. Sile F. Yang & Christopher B. Nelson & Jadon K. Wells & Madushan Fernando & Robert Lu & Joshua A. M. Allen & Lisa Malloy & Noa Lamm & Vincent J. Murphy & Joel P. Mackay & Andrew J. Deans & Anthony J. , 2024. "ZNF827 is a single-stranded DNA binding protein that regulates the ATR-CHK1 DNA damage response pathway," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    3. Jina Yu & Chunli Yan & Tanmoy Paul & Lucas Brewer & Susan E. Tsutakawa & Chi-Lin Tsai & Samir M. Hamdan & John A. Tainer & Ivaylo Ivanov, 2024. "Molecular architecture and functional dynamics of the pre-incision complex in nucleotide excision repair," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    4. Jiawei Ding & Xiangting Li & Jiangchuan Shen & Yiling Zhao & Shuchen Zhong & Luhua Lai & Hengyao Niu & Zhi Qi, 2023. "ssDNA accessibility of Rad51 is regulated by orchestrating multiple RPA dynamics," Nature Communications, Nature, vol. 14(1), pages 1-17, December.
    5. Ananya Acharya & Kristina Kasaciunaite & Martin Göse & Vera Kissling & Raphaël Guérois & Ralf Seidel & Petr Cejka, 2021. "Distinct RPA domains promote recruitment and the helicase-nuclease activities of Dna2," Nature Communications, Nature, vol. 12(1), pages 1-15, December.
    6. Clément Madru & Markel Martínez-Carranza & Sébastien Laurent & Alessandra C. Alberti & Maelenn Chevreuil & Bertrand Raynal & Ahmed Haouz & Rémy A. Meur & Marc Delarue & Ghislaine Henneke & Didier Flam, 2023. "DNA-binding mechanism and evolution of replication protein A," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    7. Aditi Mukherjee & Zakir Hossain & Esteban Erben & Shuai Ma & Jun Yong Choi & Hee-Sook Kim, 2023. "Identification of a small-molecule inhibitor that selectively blocks DNA-binding by Trypanosoma brucei replication protein A1," Nature Communications, Nature, vol. 14(1), pages 1-19, December.
    8. Sarah R. Hengel & Katherine G. Oppenheimer & Chelsea M. Smith & Matthew A. Schaich & Hayley L. Rein & Julieta Martino & Kristie E. Darrah & Maggie Witham & Oluchi C. Ezekwenna & Kyle R. Burton & Benne, 2024. "The human Shu complex promotes RAD51 activity by modulating RPA dynamics on ssDNA," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    9. Sahiti Kuppa & Jaigeeth Deveryshetty & Rahul Chadda & Jenna R. Mattice & Nilisha Pokhrel & Vikas Kaushik & Angela Patterson & Nalini Dhingra & Sushil Pangeni & Marisa K. Sadauskas & Sajad Shiekh & Ham, 2022. "Rtt105 regulates RPA function by configurationally stapling the flexible domains," Nature Communications, Nature, vol. 13(1), pages 1-16, December.

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