X-ray diffraction
2.5Å resolution

The Crystal Structure of Human Argonaute2 Bound to a Guide and Target RNA Containing Seed Pairing from 2-8 (Long Target)

Primary publication:
Gene regulation. Structural basis for microRNA targeting.
Science 346 608-13 (2014)
PMID: 25359968

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct RNA molecules
Macromolecules (3 distinct):
Protein argonaute-2 Chain: A
Molecule details ›
Chain: A
Length: 859 amino acids
Theoretical weight: 97.38 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
  • Canonical: Q9UKV8 (Residues: 1-859; Coverage: 100%)
Gene names: AGO2, EIF2C2
Sequence domains:
Structure domains:
RNA (5'-R(P*UP*UP*CP*AP*CP*AP*UP*UP*GP*UP*U)-3') Chain: B
Molecule details ›
Chain: B
Length: 21 nucleotides
Theoretical weight: 6.55 KDa
Source organism: synthetic construct
Expression system: Not provided
RNA (5'-R(P*AP*AP*UP*GP*UP*GP*AP*AP*A)-3') Chain: D
Molecule details ›
Chain: D
Length: 13 nucleotides
Theoretical weight: 4.17 KDa
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-E
Spacegroup: P21
Unit cell:
a: 55.378Å b: 116.184Å c: 69.678Å
α: 90° β: 92.17° γ: 90°
R R work R free
0.197 0.195 0.234
Expression systems:
  • Spodoptera frugiperda
  • Not provided