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Information on EC 4.1.1.78 - acetylenedicarboxylate decarboxylase

for references in articles please use BRENDA:EC4.1.1.78

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The expected taxonomic range for this enzyme is: Pseudomonas sp.

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4.1.1.78

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acetylenedicarboxylate decarboxylase

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acetylenedicarboxylate + H2O = pyruvate + CO2

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the mechanism appears to involve hydration of the acetylene and decarboxylation of the oxaloacetic acid formed, although free oxaloacetate is not an intermediate. It is thus analogous to EC 4.2.1.71, acetylenecarboxylate hydratase, in its mechanism. Formerly EC 4.2.1.72

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addition of H2O

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decarboxylation

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Pyruvate metabolism

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acetylenedicarboxylate carboxy-lyase (pyruvate-forming)

The mechanism appears to involve hydration of the acetylene and decarboxylation of the oxaloacetic acid formed, although free oxaloacetate is not an intermediate. It is thus analogous to EC 4.2.1.27 (acetylenecarboxylate hydratase) in its mechanism.

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Show Synonyms (3 entries)

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72561-10-5

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no activity in Clostridium cylindrosporum

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Manually annotated by BRENDA team

no activity in Clostridium kluyveri

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no activity in Escherichia coli

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Manually annotated by BRENDA team

no activity in Pseudomonas fluorescens

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no activity in Rattus norvegicus

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Manually annotated by BRENDA team

Pseudomonas sp.

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Manually annotated by BRENDA team

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acetylene dicarboxylate

pyruvate + CO2

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Pseudomonas sp.

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ir

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acetylene dicarboxylate

pyruvate + CO2

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Pseudomonas sp.

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ir

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additional information

Pseudomonas sp.

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no requirement

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Al(NO3)3

Pseudomonas sp.

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BaCl2

Pseudomonas sp.

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CN-

Pseudomonas sp.

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CoCl2

Pseudomonas sp.

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EDTA

Pseudomonas sp.

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Fe(NO3)3

Pseudomonas sp.

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HgCl2

Pseudomonas sp.

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NiCl2

Pseudomonas sp.

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p-chloromercuribenzoate

Pseudomonas sp.

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ZnSO4

Pseudomonas sp.

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0.07

acetylene dicarboxylate

Pseudomonas sp.

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23°C, pH 7.3

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463

Pseudomonas sp.

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7.3 - 7.8

Pseudomonas sp.

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6.5 - 8.5

Pseudomonas sp.

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23

Pseudomonas sp.

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enzyme assay at

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20

Pseudomonas sp.

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Pseudomonas sp.

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Manually annotated by BRENDA team

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7.5

Pseudomonas sp.

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highest stability at 3°C for 17 h

648381

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loss of stabililty by freezing and thawing

Pseudomonas sp.

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-20°C, 0.005 mM 2-mercaptoethanol, 10 days, less than 10% loss of activity

Pseudomonas sp.

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Pseudomonas sp.

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Show References (1 entry)

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NCBI: PubMed, Protein, Nucleotide, Structure, Genome, OMIM

IUBMB Enzyme Nomenclature

PROSITE Database of protein families and domains

InterPro (database of protein families, domains and functional sites)