4F3T

Human Argonaute-2 - miR-20a complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Structure of Human Argonaute-2 in Complex with miR-20a.

Elkayam, E.Kuhn, C.D.Tocilj, A.Haase, A.D.Greene, E.M.Hannon, G.J.Joshua-Tor, L.

(2012) Cell 150: 100-110

  • DOI: 10.1016/j.cell.2012.05.017

  • PubMed Abstract: 
  • Argonaute proteins lie at the heart of the RNA-induced silencing complex (RISC), wherein they use small RNA guides to recognize targets. Initial insight into the architecture of Argonautes came from studies of prokaryotic proteins, revealing a cresce ...

    Argonaute proteins lie at the heart of the RNA-induced silencing complex (RISC), wherein they use small RNA guides to recognize targets. Initial insight into the architecture of Argonautes came from studies of prokaryotic proteins, revealing a crescent-shaped base made up of the amino-terminal, PAZ, middle, and PIWI domains. The recently reported crystal structure of human Argonaute-2 (hAgo2), the "slicer" in RNA interference, in complex with a mixed population of RNAs derived from insect cells provides insight into the architecture of a eukaryotic Argonaute protein with defined biochemical and biological functions. Here, we report the structure of human Ago2 bound to a physiologically relevant microRNA, microRNA-20a, at 2.2 Å resolution. The miRNA is anchored at both ends by the Mid and PAZ domains and makes several kinks and turns along the binding groove. Interestingly, miRNA binding confers remarkable stability on hAgo2, locking this otherwise flexible enzyme into a stable conformation.


    Organizational Affiliation

    W. M. Keck Structural Biology Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein argonaute-2
A
861Homo sapiensMutation(s): 0 
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
RNA (5'-R(P*UP*AP*AP*AP*GP*UP*GP*CP*UP*UP*AP*UP*AP*GP*UP*G*CP*AP*GP*G)-3')R20Homo sapiens
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IPH
Query on IPH

Download SDF File 
Download CCD File 
A
PHENOL
C6 H6 O
ISWSIDIOOBJBQZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.207 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 63.427α = 90.00
b = 107.651β = 106.69
c = 68.718γ = 90.00
Software Package:
Software NamePurpose
SOLOMONphasing
SHARPphasing
PHENIXrefinement
HKL-2000data collection
SCALEPACKdata scaling
DENZOdata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-30
    Type: Initial release
  • Version 1.1: 2012-07-25
    Type: Database references
  • Version 1.2: 2017-11-15
    Type: Advisory, Refinement description