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5.99.1.4: 2-hydroxychromene-2-carboxylate isomerase

This is an abbreviated version!
For detailed information about 2-hydroxychromene-2-carboxylate isomerase, go to the full flat file.

Reaction

2-hydroxy-2H-chromene-2-carboxylate
=
(3E)-4-(2-hydroxyphenyl)-2-oxobut-3-enoate

Synonyms

2-hydroxychromene-2-carboxylate isomerase, 2-hydroxychromene-2-carboxylic acid isomerase, 2HC2CA isomerase, 2HCCAI, HCCA isomerase, nsaD

ECTree

     5 Isomerases
         5.99 Other isomerases
             5.99.1 Sole sub-subclass for isomerases that do not belong in the other subclasses
                5.99.1.4 2-hydroxychromene-2-carboxylate isomerase

Cloned

Cloned on EC 5.99.1.4 - 2-hydroxychromene-2-carboxylate isomerase

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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
a gene cluster is identified on the plasmid pBN6 which codes for several enzymes participating in the degradative pathway for naphthalenesulfonates. A DNA fragment of 16915 bp is sequenced which contains 17 ORFs. The genes encoding the 1,2-dihydroxynaphthalene dioxygenase, 2-hydroxychromene-2-carboxylate isomerase, and 29-hydroxybenzalpyruvate aldolase of the naphthalenesulfonate pathway are identified on the DNA fragment and the encoded proteins are heterologously expressed in Escherichia coli
expression in Escherichia coli