4OLB

Crystal Structure of Human Argonaute2 Bound to Tryptophan


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.899 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The crystal structure of human Argonaute2.

Schirle, N.T.MacRae, I.J.

(2012) Science 336: 1037-1040

  • DOI: 10.1126/science.1221551
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Argonaute proteins form the functional core of the RNA-induced silencing complexes that mediate RNA silencing in eukaryotes. The 2.3 angstrom resolution crystal structure of human Argonaute2 (Ago2) reveals a bilobed molecule with a central cleft for ...

    Argonaute proteins form the functional core of the RNA-induced silencing complexes that mediate RNA silencing in eukaryotes. The 2.3 angstrom resolution crystal structure of human Argonaute2 (Ago2) reveals a bilobed molecule with a central cleft for binding guide and target RNAs. Nucleotides 2 to 6 of a heterogeneous mixture of guide RNAs are positioned in an A-form conformation for base pairing with target messenger RNAs. Between nucleotides 6 and 7, there is a kink that may function in microRNA target recognition or release of sliced RNA products. Tandem tryptophan-binding pockets in the PIWI domain define a likely interaction surface for recruitment of glycine-tryptophan-182 (GW182) or other tryptophan-rich cofactors. These results will enable structure-based approaches for harnessing the untapped therapeutic potential of RNA silencing in humans.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein argonaute-2
A
859Homo sapiensMutation(s): 1 
Gene Names: AGO2 (EIF2C2)
EC: 3.1.26.n2
Find proteins for Q9UKV8 (Homo sapiens)
Go to Gene View: AGO2
Go to UniProtKB:  Q9UKV8
Entity ID: 2
MoleculeChainsLengthOrganism
5'-R(P*AP*AP*AP*AP*AP*AP*AP*AP*AP*U)-3'B10Homo sapiens
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download SDF File 
Download CCD File 
A
TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.899 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.210 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 63.207α = 90.00
b = 106.747β = 107.01
c = 68.341γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-05
    Type: Initial release