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 the crystal structure of the complex between human FEN1 and PCNA ...

    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
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Flap endonuclease-1A [auth X], B [auth Y], C [auth Z]379Homo sapiensMutation(s): 0 
Gene Names: FEN1RAD2
EC: 3.1
Find proteins for P39748 (Homo sapiens)
Explore P39748 
Go to UniProtKB:  P39748
NIH Common Fund Data Resources
PHAROS:  P39748
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 antigenD [auth A], E [auth B], F [auth C]261Homo 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
Protein Feature View
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  • Reference Sequence
Small Molecules
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  (Full details and data files)

  • 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