› 1kfl

X-ray diffraction
2.8Å resolution

Crystal structure of phenylalanine-regulated 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase (DAHP synthase) from E.coli complexed with Mn2+, PEP, and Phe

Released:
DOI: 10.2210/pdb1kfl/pdb
PDB entry 1kfl coloured by chain, front view.
PDB entry 1kfl coloured by chain, side view.
PDB entry 1kfl coloured by chain, top view.
Source organism: Escherichia coli
Primary publication:
Allosteric inhibition of 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase alters the coordination of both substrates.
Shumilin IA, Zhao C, Bauerle R, Kretsinger RH
J Mol Biol 320 1147-56 (2002)
PMID: 12126632

Function and Biology Details

Reaction catalysed: 
Phosphoenolpyruvate + D-erythrose 4-phosphate + H(2)O = 3-deoxy-D-arabino-hept-2-ulosonate 7-phosphate + phosphate
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-142030 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Phospho-2-dehydro-3-deoxyheptonate aldolase, Phe-sensitive Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 350 amino acids
Theoretical weight: 38.43 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0AB91 (Residues: 2-350; Coverage: 100%)
Gene names: JW0737, aroG, b0754
Sequence domains: DAHP synthetase I family
Structure domains: Aldolase class I

Ligands and Environments

4 bound ligands:
Ligand MN 8 x MN
Ligand SO4 16 x SO4
Ligand PHE 8 x PHE
Ligand PEP 8 x PEP
1 modified residue:
Ligand MSE 64 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: C2
Unit cell:
a: 290.097Å b: 90.097Å c: 155.798Å
α: 90° β: 120.77° γ: 90°
R-values:
R R work R free
0.219 0.218 0.246
Expression system: Escherichia coli

Quick links

Citations

2 review citations

The structural basis of allosteric regulation in proteins.
Laskowski et al. (2009)
1 more

10 mentions without citation

From carbohydrate leads to glycomimetic drugs.
Ernst et al. (2009)
9 more