5K5Q

Structure of AspA-DNA complex: novel centromere bindng protein-centromere complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.649 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.260 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of archaeal DNA segregation machinery reveal bacterial and eukaryotic linkages.

Schumacher, M.A.Tonthat, N.K.Lee, J.Rodriguez-Castaneda, F.A.Chinnam, N.B.Kalliomaa-Sanford, A.K.Ng, I.W.Barge, M.T.Shaw, P.L.Barilla, D.

(2015) Science 349: 1120-1124

  • DOI: 10.1126/science.aaa9046
  • Primary Citation of Related Structures:  
  • Also Cited By: 5KK1

  • PubMed Abstract: 
  • Although recent studies have provided a wealth of information about archaeal biology, nothing is known about the molecular basis of DNA segregation in these organisms. Here, we unveil the machinery and assembly mechanism of the archaeal Sulfolobus pN ...

    Although recent studies have provided a wealth of information about archaeal biology, nothing is known about the molecular basis of DNA segregation in these organisms. Here, we unveil the machinery and assembly mechanism of the archaeal Sulfolobus pNOB8 partition system. This system uses three proteins: ParA; an atypical ParB adaptor; and a centromere-binding component, AspA. AspA utilizes a spreading mechanism to create a DNA superhelix onto which ParB assembles. This supercomplex links to the ParA motor, which contains a bacteria-like Walker motif. The C domain of ParB harbors structural similarity to CenpA, which dictates eukaryotic segregation. Thus, this archaeal system combines bacteria-like and eukarya-like components, which suggests the possible conservation of DNA segregation principles across the three domains of life.


    Organizational Affiliation

    Department of Biochemistry, Duke University School of Medicine, 243 Nanaline H. Duke, Box 3711, Durham, NC 27710, USA. maria.schumacher@duke.edu daniela.barilla@york.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AspA
C, D, A, B, E, F
92Sulfolobus sp. NOB8H2Mutation(s): 0 
Find proteins for O93706 (Sulfolobus sp. NOB8H2)
Go to UniProtKB:  O93706
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (32-MER)P32synthetic construct
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (32-MER)N32synthetic construct
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.649 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.260 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 154.650α = 90.00
b = 56.920β = 112.30
c = 103.800γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
PDB_EXTRACTdata extraction
PHENIXrefinement
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-05-23 
  • Released Date: 2016-06-01 
  • Deposition Author(s): Schumacher, M.
  • This entry supersedes: 4RSB

Revision History 

  • Version 1.0: 2016-06-01
    Type: Initial release
  • Version 1.1: 2016-06-08
    Type: Structure summary