X-ray diffraction
2.3Å resolution

Crystal structure of the two-domain non-ribosomal peptide synthetase EntB containing isochorismate lyase and aryl-carrier protein domains


Function and Biology Details

Reactions catalysed:
Isochorismate + H(2)O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
6 ATP + 3 2,3-dihydroxybenzoate + 3 L-serine = enterobactin + 6 AMP + 6 diphosphate
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Enterobactin synthase component B Chains: A, B
Molecule details ›
Chains: A, B
Length: 287 amino acids
Theoretical weight: 32.79 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0ADI4 (Residues: 1-285; Coverage: 100%)
Gene names: JW0587, b0595, entB, entG
Sequence domains:
Structure domains:

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: P212121
Unit cell:
a: 50.889Å b: 82.331Å c: 164.73Å
α: 90° β: 90° γ: 90°
R R work R free
0.189 0.186 0.241
Expression system: Escherichia coli BL21(DE3)