2b3j

X-ray diffraction
2Å resolution

Crystal Structure of Staphylococcus aureus tRNA Adenosine Deaminase, TadA, in Complex with RNA

Released:

Function and Biology Details

Reaction catalysed:
Adenine(34) in tRNA + H(2)O = hypoxanthine(34) in tRNA + NH(3)
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-189403 (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
tRNA-specific adenosine deaminase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 159 amino acids
Theoretical weight: 17.39 KDa
Source organism: Staphylococcus aureus subsp. aureus Mu50
Expression system: Escherichia coli
UniProt:
  • Canonical: Q99W51 (Residues: 1-156; Coverage: 100%)
Gene names: SAV0558, tadA
Sequence domains: MafB19-like deaminase
Structure domains: Cytidine Deaminase, domain 2
anticodon stem-loop of t-RNA-Arg2 (nucleotides 27-42) Chains: E, F, G, H
Molecule details ›
Chains: E, F, G, H
Length: 16 nucleotides
Theoretical weight: 5.07 KDa
Source organism: Staphylococcus aureus subsp. aureus Mu50
Expression system: Not provided

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P212121
Unit cell:
a: 81.055Å b: 89.029Å c: 119.133Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.215 0.215 0.242
Expression systems:
  • Escherichia coli
  • Not provided