PDBe 4nha

X-ray diffraction
3.4Å resolution

Structure of human Dicer Platform-PAZ-Connector Helix cassette in complex with 16-mer siRNA having 5'-p and UU-3' ends (3.4 Angstrom resolution)

Released:

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage to 5'-phosphomonoester.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
hetero trimer (preferred)
hetero tetramer
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
Endoribonuclease Dicer Chain: A
Molecule details ›
Chain: A
Length: 302 amino acids
Theoretical weight: 35.23 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9UPY3 (Residues: 765-1065; Coverage: 16%)
Gene names: DICER, DICER1, HERNA, KIAA0928
Sequence domains: PAZ domain
Structure domains: paz domain
5'-R(P*GP*CP*GP*UP*UP*GP*GP*CP*CP*AP*AP*CP*GP*CP*UP*U)-3' Chain: B
Molecule details ›
Chain: B
Length: 16 nucleotides
Theoretical weight: 5.09 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

No bound ligands

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: I4122
Unit cell:
a: 174.469Å b: 174.469Å c: 74.757Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.281 0.277 0.317
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided