6I52

Yeast RPA bound to ssDNA


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

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

Yates, L.A.Aramayo, R.J.Pokhrel, N.Caldwell, C.C.Kaplan, J.A.Perera, R.L.Spies, M.Antony, E.Zhang, X.

(2018) Nat Commun 9: 5447-5447

  • DOI: 10.1038/s41467-018-07883-7
  • Primary Citation of Related Structures:  
    6I52

  • PubMed 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) ...

    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.


    Organizational Affiliation

    Section of Structural Biology, Department of Medicine, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, UK. xiaodong.zhang@imperial.ac.uk.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Replication factor A protein 3A122Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RFA3YJL173CJ0506
UniProt
Find proteins for P26755 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Go to UniProtKB:  P26755
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UniProt GroupP26755
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Replication factor A protein 2B132Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RFA2BUF1YNL312WN0368
UniProt
Find proteins for P26754 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P26754 
Go to UniProtKB:  P26754
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UniProt GroupP26754
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Replication factor A protein 1C178Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RFA1BUF2RPA1YAR007CFUN3
UniProt
Find proteins for P22336 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P22336 
Go to UniProtKB:  P22336
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UniProt GroupP22336
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Entity ID: 4
MoleculeChainsLengthOrganismImage
DNA (5'-D(P*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*T)-3')D20synthetic construct
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom098412/Z/12/Z

Revision History  (Full details and data files)

  • Version 1.0: 2018-12-19
    Type: Initial release
  • Version 1.1: 2019-01-02
    Changes: Data collection, Database references