5x6b

X-ray diffraction
2.6Å resolution

Crystal structure of SepCysE-SepCysS in complex with tRNACys from Methanocaldococcus jannaschii

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-176702 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct RNA molecule
Macromolecules (3 distinct):
O-phospho-L-seryl-tRNA:Cys-tRNA synthase Chains: I, J
Molecule details ›
Chains: I, J
Length: 417 amino acids
Theoretical weight: 47.54 KDa
Source organism: Methanocaldococcus jannaschii DSM 2661
Expression system: Escherichia coli
UniProt:
  • Canonical: Q59072 (Residues: 1-377; Coverage: 100%)
Gene names: MJ1678, pscS
Sequence domains: O-phosphoseryl-tRNA(Sec) selenium transferase, SepSecS
Structure domains:
Uncharacterized protein MJ1481 Chains: E, F
Molecule details ›
Chains: E, F
Length: 216 amino acids
Theoretical weight: 25.33 KDa
Source organism: Methanocaldococcus jannaschii DSM 2661
Expression system: Escherichia coli
UniProt:
  • Canonical: Q58876 (Residues: 1-213; Coverage: 100%)
Gene name: MJ1481
Sequence domains: Uncharacterized protein conserved in archaea (DUF2100)
tRNACys Chain: P
Molecule details ›
Chain: P
Length: 75 nucleotides
Theoretical weight: 24.13 KDa
Sequence domains: tRNA

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: P6522
Unit cell:
a: 107.252Å b: 107.252Å c: 551.102Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.226 0.224 0.261
Expression system: Escherichia coli