3GGR

Crystal Structure of the Human Rad9-Hus1-Rad1 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.289 
  • R-Value Observed: 0.291 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure and functional implications of the human rad9-hus1-rad1 cell cycle checkpoint complex

Xu, M.Bai, L.Gong, Y.Xie, W.Hang, H.Y.Jiang, T.

(2009) J Biol Chem 284: 20457-20461

  • DOI: 10.1074/jbc.C109.022384
  • Primary Citation of Related Structures:  
    3GGR

  • PubMed Abstract: 
  • Cellular DNA lesions are efficiently countered by DNA repair in conjunction with delays in cell cycle progression. Previous studies have demonstrated that Rad9, Hus1, and Rad1 can form a heterotrimeric complex (the 9-1-1 complex) that plays dual role ...

    Cellular DNA lesions are efficiently countered by DNA repair in conjunction with delays in cell cycle progression. Previous studies have demonstrated that Rad9, Hus1, and Rad1 can form a heterotrimeric complex (the 9-1-1 complex) that plays dual roles in cell cycle checkpoint activation and DNA repair in eukaryotic cells. Although the 9-1-1 complex has been proposed to form a toroidal structure similar to proliferating cell nuclear antigen (PCNA), which plays essential roles in DNA replication and repair, the structural basis by which it performs different functions has not been elucidated. Here we report the crystal structure of the human 9-1-1 complex at 3.2 A resolution. The crystal structure, together with biochemical assays, reveals that the interdomain connecting loops (IDC loop) of hRad9, hHus1, and hRad1 are largely divergent, and further cocrystallization study indicates that a PCNA-interacting box (PIP box)-containing peptide derived from hFen1 binds tightly to the interdomain connecting loop of hRad1, providing the molecular basis for the damage repair-specific activity of the 9-1-1 complex in contrast to PCNA. Furthermore, structural comparison with PCNA reveals other unique structural features of the 9-1-1 complex that are proposed to contribute to DNA damage recognition.


    Organizational Affiliation

    National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cell cycle checkpoint control protein RAD9AA270Homo sapiensMutation(s): 0 
Gene Names: Rad9RAD9A
EC: 3.1.11.2
Find proteins for Q99638 (Homo sapiens)
Explore Q99638 
Go to UniProtKB:  Q99638
NIH Common Fund Data Resources
PHAROS  Q99638
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Checkpoint protein HUS1B286Homo sapiensMutation(s): 0 
Gene Names: HUS1
Find proteins for O60921 (Homo sapiens)
Explore O60921 
Go to UniProtKB:  O60921
NIH Common Fund Data Resources
PHAROS  O60921
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Cell cycle checkpoint protein RAD1C282Homo sapiensMutation(s): 0 
Gene Names: RAD1REC1
EC: 3.1.11.2
Find proteins for O60671 (Homo sapiens)
Explore O60671 
Go to UniProtKB:  O60671
NIH Common Fund Data Resources
PHAROS  O60671
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.289 
  • R-Value Observed: 0.291 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.029α = 90
b = 67.164β = 97.58
c = 83.405γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-06-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2014-02-12
    Changes: Database references