PDBe 1un6

X-ray diffraction
3.1Å resolution

THE CRYSTAL STRUCTURE OF A ZINC FINGER - RNA COMPLEX REVEALS TWO MODES OF MOLECULAR RECOGNITION

Released:
Source organism: Xenopus laevis

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
hetero dimer (preferred)
hetero trimer
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
Transcription factor IIIA Chains: B, C, D
Molecule details ›
Chains: B, C, D
Length: 87 amino acids
Theoretical weight: 10.3 KDa
Source organism: Xenopus laevis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03001 (Residues: 126-212; Coverage: 24%)
Gene name: gtf3a
Sequence domains: Zinc finger, C2H2 type
Structure domains: Classic Zinc Finger
5S ribosomal RNA Chains: E, F
Molecule details ›
Chains: E, F
Length: 61 nucleotides
Theoretical weight: 19.71 KDa
Source organism: Xenopus laevis

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM30A, SRS BEAMLINE PX14.2
Spacegroup: C2
Unit cell:
a: 58.598Å b: 191.593Å c: 79.77Å
α: 90° β: 101.51° γ: 90°
R-values:
R R work R free
0.216 0.216 0.259
Expression system: Escherichia coli BL21(DE3)