3G0H

Human dead-box RNA helicase DDX19, in complex with an ATP-analogue and RNA

• PDB DOI: https://doi.org/10.2210/pdb3G0H/pdb
• NAKB: 3G0H

• Classification: HYDROLASE/RNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-01-28 Released: 2009-02-17 
• Deposition Author(s): Karlberg, T., Lehtio, L., Collins, R., Arrowsmith, C.H., Berglund, H., Bountra, C., Dahlgren, L.G., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Johansson, A., Johansson, I., Kotenyova, T., Moche, M., Nilsson, M.E., Nordlund, P., Nyman, T., Persson, C., Sagemark, J., Schutz, P., Siponen, M.I., Thorsell, A.G., Tresaugues, L., Van Den Berg, S., Weigelt, J., Welin, M., Wisniewska, M., Schuler, H., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.275 
• R-Value Work: 0.217 
• R-Value Observed: 0.220 

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

• PubMed: 19244245 
• DOI: https://doi.org/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. 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.

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Organizational Affiliation: 

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

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 50.75 kDa 
• Atom Count: 3,388 
• Modelled Residue Count: 415 
• Deposited Residue Count: 431 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent RNA helicase DDX19B	A	424	Homo sapiens	Mutation(s): 0  Gene Names: DBP5, DDX19, DDX19B EC: 3.6.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UMR2 (Homo sapiens) Explore Q9UMR2  Go to UniProtKB:  Q9UMR2
PHAROS:  Q9UMR2 GTEx:  ENSG00000157349

Entity ID: 2
Molecule	Chains	Length	Organism	Image
5'-R(P*UP*UP*UP*UP*UP*UP*U)-3'	B [auth E]	7	N/A

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ANP	C [auth A]	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER C10 H17 N6 O12 P3 PVKSNHVPLWYQGJ-KQYNXXCUSA-N
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG	D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.275 
• R-Value Work: 0.217 
• R-Value Observed: 0.220 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.57	α = 90
b = 81.08	β = 90
c = 124.74	γ = 90

Software Package:

Software Name	Purpose
MxCuBE	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-02-17 
Deposition Author(s): Karlberg, T., Lehtio, L., Collins, R., Arrowsmith, C.H., Berglund, H., Bountra, C., Dahlgren, L.G., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Johansson, A., Johansson, I., Kotenyova, T., Moche, M., Nilsson, M.E., Nordlund, P., Nyman, T., Persson, C., Sagemark, J., Schutz, P., Siponen, M.I., Thorsell, A.G., Tresaugues, L., Van Den Berg, S., Weigelt, J., Welin, M., Wisniewska, M., Schuler, H., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2009-02-17
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description