X-ray diffraction
2.02Å resolution

Crystal structure of translation initiation factor IF-1 from Streptococcus pneumoniae TIGR4

Entry authors: Stogios PJ, Wawrzak Z, Onopriyenko O, Savchenko A, Anderson WF, Center for Structural Genomics of Infectious Diseases (CSGID)

Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Translation initiation factor IF-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 73 amino acids
Theoretical weight: 8.27 KDa
Source organism: Streptococcus pneumoniae TIGR4
Expression system: Escherichia coli
  • Canonical: P65121 (Residues: 1-72; Coverage: 100%)
Gene names: SP_0232, infA
Sequence domains: Translation initiation factor 1A / IF-1
Structure domains: Nucleic acid-binding proteins

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P41212
Unit cell:
a: 83.636Å b: 83.636Å c: 50.575Å
α: 90° β: 90° γ: 90°
R R work R free
0.19 0.188 0.209
Expression system: Escherichia coli