1UL1

Crystal structure of the human FEN1-PCNA complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


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

  • 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 reveale ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Flap endonuclease-1
X, Y, Z
379Homo sapiensGene Names: FEN1 (RAD2)
EC: 3.1.-.-
Find proteins for P39748 (Homo sapiens)
Go to Gene View: FEN1
Go to UniProtKB:  P39748
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Proliferating cell nuclear antigen
A, B, C
261Homo sapiensGene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Go to Gene View: PCNA
Go to UniProtKB:  P12004
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
X, Y
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 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 = 90.00
b = 143.383β = 90.00
c = 246.659γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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