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Literature summary for 5.1.1.7 extracted from

  • Park, J.; Lee, W.; Song, J.; Kim, S.; Lee, J.; Cheong, C.; Kim, H.
    Purification, crystallization and preliminary X-ray crystallographic analysis of diaminopimelate epimerase from Acinetobacter baumannii (2013), Acta Crystallogr. Sect. F, 69, 42-44.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
gene dapF, overexpression of N-terminally His6-tagged enzyme, cloned with a a thrombin cleavage site, in Escherichia coli strain SoluBL21 Acinetobacter baumannii

Crystallization (Commentary)

Crystallization (Comment) Organism
purified recombinant enzyme, hanging drop vapour diffusion method, mixing of 0.001 ml of 14 mg/ml protein in 20 mM HEPES, pH 7.0, 100 mM NaCl, and 5 mM DTT, with 0.001 ml of reservoir solution containing 2 M ammonium sulfate, 0.1 M sodium HEPES, pH 7.5, and 4.9-5.1% PEG 400, equilibration against reservoir solution, 25% v/v PEG 400 as a cryoprotectant, method optimization, X-ray diffraction structure determination and analysis at 1.9 A resolution Acinetobacter baumannii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
31100
-
x * 31100 Acinetobacter baumannii

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
LL-2,6-Diaminoheptanedioate Acinetobacter baumannii
-
meso-Diaminoheptanedioate
-
r

Organism

Organism UniProt Comment Textmining
Acinetobacter baumannii
-
gene dapF
-

Purification (Commentary)

Purification (Comment) Organism
recombinant His6-tagged enzyme from Escherichia coli strain SoluBL21 by nickel affinity chromatography, tag cleavage by thrombin, another step of nickel affinity chromatography, ultrafiltration, and gel filtration Acinetobacter baumannii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
LL-2,6-Diaminoheptanedioate
-
Acinetobacter baumannii meso-Diaminoheptanedioate
-
r

Subunits

Subunits Comment Organism
? x * 31100 Acinetobacter baumannii

Synonyms

Synonyms Comment Organism
DapF
-
Acinetobacter baumannii

Cofactor

Cofactor Comment Organism Structure
additional information the enzyme is independent of pyridoxal 5'-phosphate Acinetobacter baumannii

General Information

General Information Comment Organism
evolution the enzyme is a member of the pyridoxal 5'-phosphate-independent racemase family of enzymes Acinetobacter baumannii
metabolism meso-diaminopimelate is a biosynthetic precursor of L-lysine in bacteria Acinetobacter baumannii
physiological function (2R,6S)-2,6-diaminopimelic acid, i.e. meso-diaminopimelate, in the pentapeptide of cell wall peptidoglycan provides the attachment site for the inner or outer membrane to peptidoglycan Acinetobacter baumannii