1UL1

Crystal structure of the human FEN1-PCNA complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.220 

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This is version 1.2 of the entry. See complete history. 


Literature

Structural basis for recruitment of human flap endonuclease 1 to PCNA

Sakurai, S., Kitano, K., Yamaguchi, H., Okada, K., Hamada, K., Fukuda, K., Uchida, M., Ohtsuka, E., Morioka, H., Hakoshima, T.

(2005) EMBO J 24: 683-693

  • DOI: 10.1038/sj.emboj.7600519
  • Primary Citation of Related Structures:  
    1UL1

  • PubMed Abstract: 

    • Flap endonuclease-1 (FEN1) is a key enzyme for maintaining genomic stability and replication. Proliferating cell nuclear antigen (PCNA) binds FEN1 and stimulates its endonuclease activity. The structural basis of the FEN1-PCNA interaction was revealed by ...

    Flap endonuclease-1 (FEN1) is a key enzyme for maintaining genomic stability and replication. Proliferating cell nuclear antigen (PCNA) binds FEN1 and stimulates its endonuclease activity. The structural basis of the FEN1-PCNA interaction was revealed by the crystal structure of the complex between human FEN1 and PCNA. The main interface involves the C-terminal tail of FEN1, which forms two beta-strands connected by a short helix, the betaA-alphaA-betaB motif, participating in beta-beta and hydrophobic interactions with PCNA. These interactions are similar to those previously observed for the p21CIP1/WAF1 peptide. However, this structure involving the full-length enzyme has revealed additional interfaces that are involved in the core domain. The interactions at the interfaces maintain the enzyme in an inactive 'locked-down' orientation and might be utilized in rapid DNA-tracking by preserving the central hole of PCNA for sliding along the DNA. A hinge region present between the core domain and the C-terminal tail of FEN1 would play a role in switching the FEN1 orientation from an inactive to an active orientation.

    Organizational Affiliation: 

    Structural Biology Laboratory, Nara Institute of Science and Technology, Takayama, Ikoma, Nara, Japan.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Flap endonuclease-1 X, Y, Z379Homo sapiensMutation(s): 0 
Gene Names: FEN1, RAD2
EC: 3.1
Find proteins for P39748 (Homo sapiens)
Explore P39748 
Go to UniProtKB:  P39748
NIH Common Fund Data Resources
PHAROS:  P39748
GTEx:  ENSG00000168496
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proliferating cell nuclear antigen A, B, C261Homo sapiensMutation(s): 0 
Gene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Explore P12004 
Go to UniProtKB:  P12004
NIH Common Fund Data Resources
PHAROS:  P12004
GTEx:  ENSG00000132646
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.203α = 90
b = 143.383β = 90
c = 246.659γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2007-10-23
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance