3q1q

X-ray diffraction
3.8Å resolution

Structure of a Bacterial Ribonuclease P Holoenzyme in Complex with tRNA

Released:

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage of RNA, removing 5'-extranucleotides from tRNA precursor.
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-194799 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct RNA molecules
Macromolecules (3 distinct):
Ribonuclease P protein component Chain: A
Molecule details ›
Chain: A
Length: 118 amino acids
Theoretical weight: 14.36 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9X1H4 (Residues: 3-117; Coverage: 98%)
Gene names: TM_1463, rnpA
Sequence domains: Ribonuclease P
Structure domains: Ribosomal Protein S5; domain 2
RNase P RNA Chain: B
Molecule details ›
Chain: B
Length: 347 nucleotides
Theoretical weight: 112.62 KDa
Source organism: Thermotoga maritima
Expression system: Not provided
Sequence domains: Bacterial RNase P class A
TRNA (PHE) Chain: C
Molecule details ›
Chain: C
Length: 86 nucleotides
Theoretical weight: 27.66 KDa
Source organism: Thermotoga maritima
Expression system: Not provided
Sequence domains: tRNA

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-F
Spacegroup: P3121
Unit cell:
a: 169.29Å b: 169.29Å c: 184.99Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.251 0.25 0.272
Expression systems:
  • Escherichia coli
  • Not provided