2V1U

STRUCTURE OF THE AEROPYRUM PERNIX ORC1 PROTEIN IN COMPLEX WITH DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.254 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis of DNA Replication Origin Recognition by an Orc Protein.

Gaudier, M.Schuwirth, B.S.Westcott, S.L.Wigley, D.B.

(2007) Science 317: 1213

  • DOI: 10.1126/science.1143664

  • PubMed Abstract: 
  • DNA replication in archaea and in eukaryotes share many similarities. We report the structure of an archaeal origin recognition complex protein, ORC1, bound to an origin recognition box, a DNA sequence that is found in multiple copies at replication ...

    DNA replication in archaea and in eukaryotes share many similarities. We report the structure of an archaeal origin recognition complex protein, ORC1, bound to an origin recognition box, a DNA sequence that is found in multiple copies at replication origins. DNA binding is mediated principally by a C-terminal winged helix domain that inserts deeply into the major and minor grooves, widening them both. However, additional DNA contacts are made with the N-terminal AAA+ domain, which inserts into the minor groove at a characteristic G-rich sequence, inducing a 35 degrees bend in the duplex and providing directionality to the binding site. Both contact regions also induce substantial unwinding of the DNA. The structure provides insight into the initial step in assembly of a replication origin and recruitment of minichromosome maintenance (MCM) helicase to that origin.


    Organizational Affiliation

    Cancer Research UK Clare Hall Laboratories, London Research Institute, Blanche Lane, South Mimms, Potters Bar, Herts EN6 3LD, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELL DIVISION CONTROL PROTEIN 6 HOMOLOG
A
387Aeropyrum pernix (strain ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 / K1)Gene Names: orc1
Find proteins for Q9YEV6 (Aeropyrum pernix (strain ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 / K1))
Go to UniProtKB:  Q9YEV6
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*TP*CP*TP*CP*CP*AP*CP*AP*GP*GP *AP*AP*AP*CP*GP*GP*AP*GP*GP*GP*GP*T)-3'B22Aeropyrum pernix
Entity ID: 3
MoleculeChainsLengthOrganism
5'-D(*AP*CP*CP*CP*CP*TP*CP*CP*GP*TP *TP*TP*CP*CP*TP*GP*TP*GP*GP*AP*GP*A)-3'C22Aeropyrum pernix
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.254 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 75.700α = 90.00
b = 75.700β = 90.00
c = 395.110γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
SCALAdata scaling
autoSHARPphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-09-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance