1tfk

X-ray diffraction
2.1Å resolution

Ribonuclease from Escherichia coli complexed with its inhibtor protein

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-145972 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Colicin-D Chain: A
Molecule details ›
Chain: A
Length: 94 amino acids
Theoretical weight: 10.83 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P17998 (Residues: 604-697; Coverage: 14%)
Gene name: cda
Sequence domains: Colicin D
Structure domains: Nuclear Transport Factor 2; Chain: A,
Colicin-D immunity protein Chain: B
Molecule details ›
Chain: B
Length: 91 amino acids
Theoretical weight: 10.63 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P11899 (Residues: 2-87; Coverage: 99%)
Gene name: cdi
Sequence domains: Bacterial self-protective colicin-like immunity
Structure domains: Colicin D

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: P41212
Unit cell:
a: 58.503Å b: 58.503Å c: 149.392Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.243 0.225 0.251
Expression system: Escherichia coli