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Literature summary for 3.1.8.2 extracted from

  • Blum, M.M.; Chen, J.C.
    Structural characterization of the catalytic calcium-binding site in diisopropyl fluorophosphatase (DFPase)-Comparison with related beta-propeller enzymes (2010), Chem. Biol. Interact., 187, 373-379.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Loligo vulgaris

Crystallization (Commentary)

Crystallization (Comment) Organism
mutant enzymes N120D/N175D/D229N, E21QN120D/N175D/D229N, and D121E are crystallized by hanging drop vapor diffusion method, using 0.1 M MES buffer pH 6.5, 14-20% (w/v) PEG 3350 Loligo vulgaris

Protein Variants

Protein Variants Comment Organism
D121E the mutant displays 87% activity compared to the wild type enzyme Loligo vulgaris
D229N enzymatically inactive Loligo vulgaris
E21Q/N120D/N175D/D229N the mutations lead to a loss of calcium binding and enzymatic activity Loligo vulgaris
N120D/N175D/D229N the mutations lead to a loss of calcium binding and enzymatic activity Loligo vulgaris

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ required for activity, the wild type enzyme contains two Ca2+ ions Loligo vulgaris

Organism

Organism UniProt Comment Textmining
Loligo vulgaris Q7SIG4
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-

Purification (Commentary)

Purification (Comment) Organism
Ni-NTA column chromatography and Q-Sepharose column chromatography Loligo vulgaris

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
diisopropyl fluorophosphate + H2O
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Loligo vulgaris diisopropyl phosphate + fluoride
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?

Synonyms

Synonyms Comment Organism
DFPase
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Loligo vulgaris
diisopropyl fluorophosphatase
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Loligo vulgaris