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. 1980 Oct 15;192(1):339–347. doi: 10.1042/bj1920339

Chemical structure and biodegradability of halogenated aromatic compounds. Conversion of chlorinated muconic acids into maleoylacetic acid.

E Schmidt, H J Knackmuss
PMCID: PMC1162339  PMID: 7305906

Abstract

1. An enzyme for the cycloisomerization of 2- and 3-chloro-cis,cis-muconic acid was isolated from 3-chlorobenzoate-grown cells of Pseudomonas sp. B13. It was named muconate cycloisomerase II, because it could it clearly be differentiated by its Km and Vmax. values from an ordinary muconate cycloisomerase, which functioned in benzoate catabolism and exhibited low activity with the chlorinated substrates. 2-Chloro-cis,cis-muconic acid was converted into trans- and 3-chloro-cis,cis--muconic acid into cis-4-carboxymethylenebut-2-en-4-olide together with dehalogenation. 2. An enzyme was isolated from chlorobenzoate-grown cells, which converted the 4-carboxymethylenebut-2-en-4-olides into maleoylacetic acid.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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