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Methylmuconolactone methyl-isomerase MmlI is a short, approx 115 residue, protein of two alpha helices and four beta strands. It is involved in the catabolism of methyl-substituted aromatics via a modified oxo-adipate pathway in bacteria. The enzyme appears to be monomeric in some species and tetrameric in others. The known structure shows two copies of the protein form a dimeric alpha beta barrel. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",