4-carboxymethyl-4-methylbutenolide mutase

4-carboxymethyl-4-methylbutenolide mutase
Identifiers
EC number 5.4.99.14
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO

In enzymology, a 4-carboxymethyl-4-methylbutenolide mutase (EC 5.4.99.14) is an enzyme that catalyzes the chemical reaction

4-carboxymethyl-4-methylbut-2-en-1,4-olide 4-carboxymethyl-3-methylbut-2-en-1,4-olide

Hence, this enzyme has one substrate, 4-carboxymethyl-4-methylbut-2-en-1,4-olide, and one product, 4-carboxymethyl-3-methylbut-2-en-1,4-olide.

This enzyme belongs to the family of isomerases, specifically those intramolecular transferases transferring other groups. The systematic name of this enzyme class is 4-carboxymethyl-4-methylbut-2-en-1,4-olide methylmutase. Other names in common use include 4-methyl-2-enelactone isomerase, 4-methylmuconolactone methylisomerase, and 4-methyl-3-enelactone methyl isomerase.

References

    • Bruce NC; Cain RB (1988). "beta-Methylmuconolactone, a key intermediate in the dissimilation of methylaromatic compounds by a modified 3-oxoadipate pathway evolved in nocardioform actinomycetes". FEMS Microbiol. Lett. 50: 233&ndash, 239. doi:10.1111/j.1574-6968.1988.tb02944.x.
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