Nocardia globerula CL1 produced a glutathione-independent maleylacetoacetate isomerase after growth on L-tyrosine. Partial purification of this isomerase demonstrated its independence of low-molecular-weight cofactors such as glutathione. Similar glutathione-independent maleylacetoacetate isomerases were present in three other gram-positive bacteria grown on tyrosine.
S R Hagedorn, P J Chapman. Glutathione-independent maleylacetoacetate isomerase in gram-positive bacteria. Journal of bacteriology. 1985 Aug;163(2):803-5
PMID: 4019417
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