Maleylacetoacetate isomerase

This enzyme belongs to the family of isomerases, specifically cis-trans isomerases. The systematic name of this enzyme class is 4-maleylacetoacetate cis-trans-isomerase. Other names in common use include maleylacetoacetic isomerase, maleylacetone isomerase, and maleylacetone cis-trans-isomerase. This enzyme participates in tyrosine metabolism and styrene degradation.

Structural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes 1FW1, 2CZ2, and 2CZ3.

References

EDWARDS SW, KNOX WE (1956). "Homogentisate metabolism: the isomerization of maleylacetoacetate by an enzyme which requires glutathione". J. Biol. Chem. 220 (1): 79–91. PMID 13319328.
Lack L (1961). "Enzymic cis-trans isomerization of maleylpyruvic acid". J. Biol. Chem. 236: 2835–2840. PMID 14461395.
Seltzer S (1973). "Purification and properties of maleylacetone cis-trans isomerase from vibrio 01". J. Biol. Chem. 248 (1): 215–22. PMID 4692831.

Isomerases: geometric (EC 5.2)

5.2.1	FKBP: FKBP1A FKBP1B FKBP2 FKBP3 FKBP5 FKBP6 FKBP8 FKBP9 FKBP10 FKBP52 FKBPL other: Cyclophilin Parvulin Prolyl isomerase

Proteins: enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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