5YZ0

Cryo-EM Structure of human ATR-ATRIP complex

  • Classification: CELL CYCLE
  • Organism(s): Homo sapiens
  • Expression System: Homo sapiens

  • Deposited: 2017-12-11 Released: 2018-01-31 
  • Deposition Author(s): Rao, Q., Liu, M., Tian, Y., Wu, Z., Wang, H., Wang, J., Xu, Y.
  • Funding Organization(s): Ministry of Science and Technology (China); Strategic Priority Research Program of Chinese Academy of Sciences(CAS)); National Natural Science Foundation of China; Beijing Municipal Science & Technology Commission 

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.7 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

Cryo-EM structure of human ATR-ATRIP complex.

Rao, Q.Liu, M.Tian, Y.Wu, Z.Hao, Y.Song, L.Qin, Z.Ding, C.Wang, H.W.Wang, J.Xu, Y.

(2018) Cell Res. 28: 143-156

  • DOI: 10.1038/cr.2017.158

  • PubMed Abstract: 
  • ATR (ataxia telangiectasia-mutated and Rad3-related) protein kinase and ATRIP (ATR-interacting protein) form a complex and play a critical role in response to replication stress and DNA damage. Here, we determined the cryo-electron microscopy (EM) st ...

    ATR (ataxia telangiectasia-mutated and Rad3-related) protein kinase and ATRIP (ATR-interacting protein) form a complex and play a critical role in response to replication stress and DNA damage. Here, we determined the cryo-electron microscopy (EM) structure of the human ATR-ATRIP complex at 4.7 Å resolution and built an atomic model of the C-terminal catalytic core of ATR (residues 1 521-2 644) at 3.9 Å resolution. The complex adopts a hollow "heart" shape, consisting of two ATR monomers in distinct conformations. The EM map for ATRIP reveals 14 HEAT repeats in an extended "S" shape. The conformational flexibility of ATR allows ATRIP to properly lock the N-termini of the two ATR monomers to favor ATR-ATRIP complex formation and functional diversity. The isolated "head-head" and "tail-tail" each adopts a pseudo 2-fold symmetry. The catalytic pockets face outward and substrate access is not restricted by inhibitory elements. Our studies provide a structural basis for understanding the assembly of the ATR-ATRIP complex and a framework for characterizing ATR-mediated DNA repair pathways.Cell Research advance online publication 22 December 2017; doi:10.1038/cr.2017.158.


    Organizational Affiliation

    Fudan University Shanghai Cancer Center, Institute of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase ATR
A, B
2644Homo sapiensMutation(s): 0 
Gene Names: ATR (FRP1)
EC: 2.7.11.1
Find proteins for Q13535 (Homo sapiens)
Go to Gene View: ATR
Go to UniProtKB:  Q13535
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ATR-interacting protein
C, D
791Homo sapiensMutation(s): 0 
Gene Names: ATRIP (AGS1)
Find proteins for Q8WXE1 (Homo sapiens)
Go to Gene View: ATRIP
Go to UniProtKB:  Q8WXE1
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2016YFA0500700
Ministry of Science and Technology (China)China2016YFA0501100
Strategic Priority Research Program of Chinese Academy of Sciences(CAS))ChinaXDB08000000
National Natural Science Foundation of ChinaChinaU1432242
National Natural Science Foundation of ChinaChina31425008
National Natural Science Foundation of ChinaChina91419301
Beijing Municipal Science & Technology CommissionChinaZ161100000116034

Revision History 

  • Version 1.0: 2018-01-31
    Type: Initial release
  • Version 1.1: 2018-03-21
    Type: Database references