3EWS

Human DEAD-box RNA-helicase DDX19 in complex with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.192 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The DEXD/H-box RNA Helicase DDX19 Is Regulated by an {alpha}-Helical Switch.

Collins, R.Karlberg, T.Lehtio, L.Schutz, P.van den Berg, S.Dahlgren, L.G.Hammarstrom, M.Weigelt, J.Schuler, H.

(2009) J Biol Chem 284: 10296-10300

  • DOI: 10.1074/jbc.C900018200
  • Primary Citation of Related Structures:  
    3EWS, 3G0H

  • PubMed Abstract: 
  • DEXD/H-box RNA helicases couple ATP hydrolysis to RNA remodeling by an unknown mechanism. We used x-ray crystallography and biochemical analysis of the human DEXD/H-box protein DDX19 to investigate its regulatory mechanism. The crystal structures of DDX19, in its RNA-bound prehydrolysis and free posthydrolysis state, reveal an alpha-helix that inserts between the conserved domains of the free protein to negatively regulate ATPase activity ...

    DEXD/H-box RNA helicases couple ATP hydrolysis to RNA remodeling by an unknown mechanism. We used x-ray crystallography and biochemical analysis of the human DEXD/H-box protein DDX19 to investigate its regulatory mechanism. The crystal structures of DDX19, in its RNA-bound prehydrolysis and free posthydrolysis state, reveal an alpha-helix that inserts between the conserved domains of the free protein to negatively regulate ATPase activity. This finding was corroborated by biochemical data that confirm an autoregulatory function of the N-terminal region of the protein. This is the first study describing crystal structures of a DEXD/H-box protein in its open and closed cleft conformations.


    Organizational Affiliation

    Structural Genomics Consortium, Department of Medical Biochemistry and Biophysics, Karolinska Institute, S-17177 Stockholm, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-dependent RNA helicase DDX19BA, B445Homo sapiensMutation(s): 0 
Gene Names: DBP5DDX19DDX19BTDBP
EC: 3.6.1 (PDB Primary Data), 3.6.4.13 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UMR2 (Homo sapiens)
Explore Q9UMR2 
Go to UniProtKB:  Q9UMR2
PHAROS:  Q9UMR2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.192 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.58α = 90
b = 47.61β = 95.4
c = 124.69γ = 90
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History