5NT7

Structure of the LOTUS domain of Oskar in complex with the C-terminal RecA-like domain of Vasa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The LOTUS domain is a conserved DEAD-box RNA helicase regulator essential for the recruitment of Vasa to the germ plasm and nuage.

Jeske, M.Muller, C.W.Ephrussi, A.

(2017) Genes Dev. 31: 939-952

  • DOI: 10.1101/gad.297051.117

  • PubMed Abstract: 
  • DEAD-box RNA helicases play important roles in a wide range of metabolic processes. Regulatory proteins can stimulate or block the activity of DEAD-box helicases. Here, we show that LOTUS (Limkain, Oskar, and Tudor containing proteins 5 and 7) domain ...

    DEAD-box RNA helicases play important roles in a wide range of metabolic processes. Regulatory proteins can stimulate or block the activity of DEAD-box helicases. Here, we show that LOTUS (Limkain, Oskar, and Tudor containing proteins 5 and 7) domains present in the germline proteins Oskar, TDRD5 (Tudor domain-containing 5), and TDRD7 bind and stimulate the germline-specific DEAD-box RNA helicase Vasa. Our crystal structure of the LOTUS domain of Oskar in complex with the C-terminal RecA-like domain of Vasa reveals that the LOTUS domain occupies a surface on a DEAD-box helicase not implicated previously in the regulation of the enzyme's activity. We show that, in vivo, the localization of Drosophila Vasa to the nuage and germ plasm depends on its interaction with LOTUS domain proteins. The binding and stimulation of Vasa DEAD-box helicases by LOTUS domains are widely conserved.


    Organizational Affiliation

    Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATP-dependent RNA helicase vasa, isoform A
B, D
163Drosophila melanogasterMutation(s): 0 
Gene Names: vas (vasa)
EC: 3.6.4.13
Find proteins for P09052 (Drosophila melanogaster)
Go to UniProtKB:  P09052
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Maternal effect protein oskar
A, C
107Drosophila melanogasterMutation(s): 0 
Gene Names: osk
Find proteins for P25158 (Drosophila melanogaster)
Go to UniProtKB:  P25158
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.169 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 38.950α = 89.28
b = 39.040β = 91.85
c = 97.480γ = 99.26
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
PHASERphasing
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-05-17
    Type: Initial release
  • Version 1.1: 2017-06-07
    Type: Database references
  • Version 1.2: 2017-06-14
    Type: Database references