› 3tdf

X-ray diffraction
1.99Å resolution

Crystal structure of the complex of Dihydrodipicolinate synthase from Acinetobacter baumannii with 2-Ketobutanoic acid at 1.99 A resolution

Released:
DOI: 10.2210/pdb3tdf/pdb
PDB entry 3tdf coloured by chain, front view.
PDB entry 3tdf coloured by chain, side view.
PDB entry 3tdf coloured by chain, top view.
Source organism: Acinetobacter baumannii ATCC 19606 = CIP 70.34 = JCM 6841
Entry authors: Kumar M, Kaushik S, Sinha M, Kaur P, Tewari R, Sharma S, Singh TP

Function and Biology Details

Reaction catalysed: 
Pyruvate + L-aspartate-4-semialdehyde = (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinate + H(2)O
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-111945 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
4-hydroxy-tetrahydrodipicolinate synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 291 amino acids
Theoretical weight: 31.28 KDa
Source organism: Acinetobacter baumannii ATCC 19606 = CIP 70.34 = JCM 6841
Expression system: Escherichia coli
UniProt:
  • Canonical: D0CFC3 (Residues: 7-297; Coverage: 98%)
Gene names: HMPREF0010_03414, dapA
Sequence domains: Dihydrodipicolinate synthetase family
Structure domains: Aldolase class I

Ligands and Environments

1 bound ligand:
Ligand 2KT 2 x 2KT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P21
Unit cell:
a: 52.235Å b: 121.947Å c: 51.131Å
α: 90° β: 115.9° γ: 90°
R-values:
R R work R free
0.184 0.182 0.22
Expression system: Escherichia coli

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