The structure of PriRep1 with dsDNA

Experimental Data Snapshot

  • Resolution: 3.14 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Staphylococcal self-loading helicases couple the staircase mechanism with inter domain high flexibility.

Qiao, C.Debiasi-Anders, G.Mir-Sanchis, I.

(2022) Nucleic Acids Res 50: 8349-8362

  • DOI: https://doi.org/10.1093/nar/gkac625
  • Primary Citation of Related Structures:  
    7OLA, 7OM0, 7PDS

  • PubMed Abstract: 

    Replication is a crucial cellular process. Replicative helicases unwind DNA providing the template strand to the polymerase and promoting replication fork progression. Helicases are multi-domain proteins which use an ATPase domain to couple ATP hydrolysis with translocation, however the role that the other domains might have during translocation remains elusive. Here, we studied the unexplored self-loading helicases called Reps, present in Staphylococcus aureus pathogenicity islands (SaPIs). Our cryoEM structures of the PriRep5 from SaPI5 (3.3 Å), the Rep1 from SaPI1 (3.9 Å) and Rep1-DNA complex (3.1Å) showed that in both Reps, the C-terminal domain (CTD) undergoes two distinct movements respect the ATPase domain. We experimentally demonstrate both in vitro and in vivo that SaPI-encoded Reps need key amino acids involved in the staircase mechanism of translocation. Additionally, we demonstrate that the CTD's presence is necessary for the maintenance of full ATPase and helicase activities. We speculate that this high interdomain flexibility couples Rep's activities as initiators and as helicases.

  • Organizational Affiliation

    Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden.


Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Similar to D. nodosus vapE
A, B, C, D, E
A, B, C, D, E, F
477Staphylococcus aureusMutation(s): 0 
Find proteins for Q8VLX1 (Staphylococcus aureus)
Explore Q8VLX1 
Go to UniProtKB:  Q8VLX1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8VLX1
Sequence Annotations
  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains LengthOrganismImage
polyAG [auth M]5Staphylococcus aureus
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
AGS (Subject of Investigation/LOI)
Query on AGS

Download Ideal Coordinates CCD File 
H [auth A]
J [auth B]
L [auth C]
N [auth D]
P [auth E]
H [auth A],
J [auth B],
L [auth C],
N [auth D],
P [auth E],
Q [auth F]
C10 H16 N5 O12 P3 S
MG (Subject of Investigation/LOI)
Query on MG

Download Ideal Coordinates CCD File 
I [auth A],
K [auth B],
M [auth C],
O [auth D]
Experimental Data & Validation

Experimental Data

  • Resolution: 3.14 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Knut and Alice Wallenberg FoundationSweden--

Revision History  (Full details and data files)

  • Version 1.0: 2022-07-13
    Type: Initial release
  • Version 1.1: 2022-08-10
    Changes: Database references
  • Version 1.2: 2022-08-24
    Changes: Database references