5ifg

X-ray diffraction
2.7Å resolution

Crystal structure of HigA-HigB complex from E. Coli

Released:
Source organism: Escherichia coli K-12
Primary publication:
Structural insight into the E.��coli HigBA complex.
Biochem. Biophys. Res. Commun. 478 1521-7 (2016)
PMID: 27601326

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
mRNA interferase toxin HigB Chains: A, C
Molecule details ›
Chains: A, C
Length: 104 amino acids
Theoretical weight: 12.27 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P64578 (Residues: 1-104; Coverage: 100%)
Gene names: JW3054, b3083, higB, ygjN
Sequence domains: HigB_toxin, RelE-like toxic component of a toxin-antitoxin system
Antitoxin HigA Chains: B, D
Molecule details ›
Chains: B, D
Length: 138 amino acids
Theoretical weight: 15.24 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P67701 (Residues: 1-138; Coverage: 100%)
Gene names: JW3053, b3082, higA, ygjM
Sequence domains: Helix-turn-helix

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: BSRF BEAMLINE 3W1A
Spacegroup: P3121
Unit cell:
a: 77.924Å b: 77.924Å c: 180.634Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.202 0.198 0.231
Expression system: Escherichia coli BL21(DE3)