Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 775.39 kDa 
• Atom Count: 33371 
• Residue Count: 5404 
• Unique protein chains: 2

5YZ0

Cryo-EM Structure of human ATR-ATRIP complex

• DOI: 10.2210/pdb5YZ0/pdb
• EMDataResource: EMD-6862

• Classification: CELL CYCLE
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• 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

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

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

• PubMed: 29271416 
• DOI: 10.1038/cr.2017.158
• Primary Citation of Related Structures:  
  5YZ0


• 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) 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.

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Organizational Affiliation: 

CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase ATR	A, B	2644	Homo sapiens	Mutation(s): 0  Gene Names: ATR, FRP1 EC: 2.7.11.1
Find proteins for Q13535 (Homo sapiens) Explore Q13535  Go to UniProtKB:  Q13535
NIH Common Fund Data Resources
PHAROS:  Q13535 GTEx:  ENSG00000175054

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ATR-interacting protein	C, D	791	Homo sapiens	Mutation(s): 0  Gene Names: ATRIP, AGS1
Find proteins for Q8WXE1 (Homo sapiens) Explore Q8WXE1  Go to UniProtKB:  Q8WXE1
NIH Common Fund Data Resources
PHAROS:  Q8WXE1 GTEx:  ENSG00000164053

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-12-11 
• Released Date: 2018-01-31 
Deposition Author(s): Rao, Q., Liu, M., Tian, Y., Wu, Z., Wang, H., Wang, J., Xu, Y.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (China)	China	2016YFA0500700
Ministry of Science and Technology (China)	China	2016YFA0501100
Strategic Priority Research Program of Chinese Academy of Sciences(CAS))	China	XDB08000000
National Natural Science Foundation of China	China	U1432242
National Natural Science Foundation of China	China	31425008
National Natural Science Foundation of China	China	91419301
Beijing Municipal Science & Technology Commission	China	Z161100000116034

Revision History 

• Version 1.0: 2018-01-31
  Type: Initial release
  
• Version 1.1: 2018-03-21
  Changes: Database references
• Version 1.2: 2019-11-06
  Changes: Data collection, Other