4.1.1.78: acetylenedicarboxylate decarboxylase

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Reaction

Synonyms

acetylenedicarboxylate hydrase, EC 4.2.1.72, hydratase, acetylenedicarboxylate

ECTree

4 Lyases

4.1 Carbon-carbon lyases

4.1.1 Carboxy-lyases

4.1.1.78 acetylenedicarboxylate decarboxylase

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1	CAS Registry Number
1	Cofactor
1	General Stability
10	Inhibitors
1	KM Value [mM]
1	Natural Substrates/ Products (Substrates)
6	Organism
1	Pathway
1	pH Optimum
1	pH Range
1	pH Stability
1	Purification (Commentary)
1	Reaction
2	Reaction Type
6	Reference
1	Source Tissue
1	Specific Activity [micromol/min/mg]
1	Storage Stability
1	Substrates and Products (Substrate)
3	Synonyms
1	Systematic Name
1	Temperature Optimum [°C]
1	Temperature Range [°C]

Reaction

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Reaction on EC 4.1.1.78 - acetylenedicarboxylate decarboxylase

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acetylenedicarboxylate + H2O = pyruvate + CO2

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