| maleyl | <chemistry> A hypothetical radical derived from maleic acid. Origin: Maleic + -yl. Source: Websters Dictionary (01 Mar 1998) |
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| maleylacetate reductase | <enzyme> Reduces maleylacetate to beta-ketoadipate, uses NADH Registry number: EC 1.3.1.32 (26 Jun 1999) |
| maleylacetoacetate | An intermediate in l-phenylalanine and l-tyrosine catabolism; accumulates in certain inherited disorders of tyrosine metabolism. Maleylacetoacetate cis,trans-isomerase, an enzyme that catalyses the reversible conversion of maleylacetoacetate to 4-fumarylacetoacetate; an enzyme that participates in l-tyrosine catabolism; a deficiency of this enzyme is associated with tyrosinaemia type IB. Structure: -OOC-CH==CH-COCH2COCH2COO- (05 Mar 2000) |
| maleylpyruvate isomerase | <enzyme> Catalyses isomerization of 3-maleylpyruvate to 3-fumarylpyruvate Registry number: EC 5.2.1.4 (26 Jun 1999) |
| maleylacetoacetate isomerase |
[EC 5.2.1.2] an enzyme of the isomerase class that catalyzes the interconversion of the isomers 4-maleylacetoacetate and 4-fumarylacetoacetate. The reaction is a step in the use of phenylalanine and tyrosine as fuel.
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