1zc8

Electron Microscopy
13Å resolution

Coordinates of tmRNA, SmpB, EF-Tu and h44 fitted into Cryo-EM map of the 70S ribosome and tmRNA complex

Released:
Source organism: Thermus thermophilus
Primary publication:
Visualizing tmRNA entry into a stalled ribosome.
Science 300 127-30 (2003)
PMID: 12677067
Related structures: EMD-1122

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero undecamer (preferred)
PDBe Complex ID:
PDB-CPX-130352 (preferred)
Entry contents:
2 distinct polypeptide molecules
9 distinct RNA molecules
Macromolecules (11 distinct):
SsrA-binding protein Chain: K
Molecule details ›
Chain: K
Length: 130 amino acids
Theoretical weight: 15.09 KDa
Source organism: Thermus thermophilus
UniProt:
  • Canonical: O66640 (Residues: 2-131; Coverage: 83%)
Gene names: aq_287, smb, smpB
Sequence domains: SmpB protein
Elongation factor Tu-A Chain: Y
Molecule details ›
Chain: Y
Length: 405 amino acids
Theoretical weight: 44.74 KDa
Source organism: Thermus thermophilus
UniProt:
  • Canonical: Q5SHN6 (Residues: 2-406; Coverage: 100%)
Gene names: TTHA1694, tuf, tufA
Sequence domains:
TLD 16S ribosomal RNA Chain: A
Molecule details ›
Chain: A
Length: 59 nucleotides
Theoretical weight: 18.95 KDa
Sequence domains: transfer-messenger RNA
H2 16S rRNA Chain: B
Molecule details ›
Chain: B
Length: 16 nucleotides
Theoretical weight: 5.16 KDa
H2b d mRNA Chain: C
Molecule details ›
Chain: C
Length: 31 nucleotides
Theoretical weight: 10.01 KDa
protein kinase 4 mRNA Chain: G
Molecule details ›
Chain: G
Length: 30 nucleotides
Theoretical weight: 9.74 KDa
H5 16S ribosomal RNA Chain: F
Molecule details ›
Chain: F
Length: 29 nucleotides
Theoretical weight: 9.21 KDa
protein kinase 2 mRNA Chain: H
Molecule details ›
Chain: H
Length: 59 nucleotides
Theoretical weight: 18.92 KDa
protein kinase 3 Chain: I
Molecule details ›
Chain: I
Length: 49 nucleotides
Theoretical weight: 15.81 KDa
protein kinase 4 mRNA Chain: J
Molecule details ›
Chain: J
Length: 52 nucleotides
Theoretical weight: 16.78 KDa
H44 16S ribosomal RNA Chain: Z
Molecule details ›
Chain: Z
Length: 91 nucleotides
Theoretical weight: 29.59 KDa
Sequence domains: Bacterial small subunit ribosomal RNA

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 13Å
Relevant EMDB volumes: EMD-1122