4CVN

Structure of the Fap7-Rps14 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.12 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

RNA Mimicry by the Fap7 Adenylate Kinase in Ribosome Biogenesis

Loch, J.Blaud, M.Rety, S.Lebaron, S.Deschamps, P.Bareille, J.Jombart, J.Robert-Paganin, J.Delbos, L.Chardon, F.Zhang, E.Charenton, C.Tollervey, D.Leulliot, N.

(2014) PLoS Biol 12: 01860

  • DOI: 10.1371/journal.pbio.1001860
  • Primary Citation of Related Structures:  
    4CW7, 4CVN

  • PubMed Abstract: 
  • During biogenesis of the 40S and 60S ribosomal subunits, the pre-40S particles are exported to the cytoplasm prior to final cleavage of the 20S pre-rRNA to mature 18S rRNA. Amongst the factors involved in this maturation step, Fap7 is unusual, as it both interacts with ribosomal protein Rps14 and harbors adenylate kinase activity, a function not usually associated with ribonucleoprotein assembly ...

    During biogenesis of the 40S and 60S ribosomal subunits, the pre-40S particles are exported to the cytoplasm prior to final cleavage of the 20S pre-rRNA to mature 18S rRNA. Amongst the factors involved in this maturation step, Fap7 is unusual, as it both interacts with ribosomal protein Rps14 and harbors adenylate kinase activity, a function not usually associated with ribonucleoprotein assembly. Human hFap7 also regulates Cajal body assembly and cell cycle progression via the p53-MDM2 pathway. This work presents the functional and structural characterization of the Fap7-Rps14 complex. We report that Fap7 association blocks the RNA binding surface of Rps14 and, conversely, Rps14 binding inhibits adenylate kinase activity of Fap7. In addition, the affinity of Fap7 for Rps14 is higher with bound ADP, whereas ATP hydrolysis dissociates the complex. These results suggest that Fap7 chaperones Rps14 assembly into pre-40S particles via RNA mimicry in an ATP-dependent manner. Incorporation of Rps14 by Fap7 leads to a structural rearrangement of the platform domain necessary for the pre-rRNA to acquire a cleavage competent conformation.


    Organizational Affiliation

    Laboratoire de Cristallographie et RMN Biologiques, UMR CNRS 8015, Université Paris Descartes, Faculté de Pharmacie, Sorbonne Paris Cité, Paris, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PUTATIVE ADENYLATE KINASEA, B, C, D191Pyrococcus abyssi GE5Mutation(s): 0 
Gene Names: PYRAB11420PAB0757
EC: 2.7.4.3
Find proteins for Q9UZK4 (Pyrococcus abyssi (strain GE5 / Orsay))
Explore Q9UZK4 
Go to UniProtKB:  Q9UZK4
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S11E, F, G, H137Pyrococcus abyssi GE5Mutation(s): 0 
Gene Names: rps11PYRAB05290PAB0362
Find proteins for P62010 (Pyrococcus abyssi (strain GE5 / Orsay))
Explore P62010 
Go to UniProtKB:  P62010
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.12 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.05α = 90
b = 139.55β = 105.51
c = 83.08γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-05-28
    Type: Initial release