X-ray diffraction
2.3Å resolution

Crystal Structure of the SRP19-7S.S SRP RNA Complex of M. jannaschii


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
Signal recognition particle 19 kDa protein Chain: A
Molecule details ›
Chain: A
Length: 87 amino acids
Theoretical weight: 10.38 KDa
Source organism: Methanocaldococcus jannaschii
Expression system: Escherichia coli
  • Canonical: Q58440 (Residues: 1-87; Coverage: 100%)
Gene names: MJ1034, srp19
Sequence domains: SRP19 protein
Structure domains: Signal recognition particle, SRP19-like subunit
7S.S SRP RNA Chain: B
Molecule details ›
Chain: B
Length: 97 nucleotides
Theoretical weight: 31.43 KDa
Source organism: Methanocaldococcus jannaschii
Expression system: Not provided
Sequence domains: Bacterial small signal recognition particle RNA

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: MAX II BEAMLINE I711
Spacegroup: P212121
Unit cell:
a: 42.521Å b: 61.405Å c: 155.978Å
α: 90° β: 90° γ: 90°
R R work R free
0.227 0.224 0.273
Expression systems:
  • Escherichia coli
  • Not provided