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EC 1.2.1.85 Details
EC number
1.2.1.85
Accepted name
2-hydroxymuconate-6-semialdehyde dehydrogenase
Reaction
2-hydroxymuconate-6-semialdehyde + NAD+ + H2O = (2Z,4E)-2-hydroxyhexa-2,4-dienedioate + NADH + 2 H+
Other name(s)
xylG (gene name), praB (gene name)
Systematic name
2-hydroxymuconate-6-semialdehyde:NAD+ oxidoreductase
Comment
This substrate for this enzyme is formed by meta ring cleavage of catechol (EC 1.13.11.2, catechol 2,3-dioxygenase), and is an intermediate in the bacterial degradation of several aromatic compounds. Has lower activity with benzaldehyde [1]. Activity with NAD+ is more than 10-fold higher than with NADP+ [3]. cf. EC 1.2.1.32, aminomuconate-semialdehyde dehydrogenase.
History
created 2012
EC Tree
1.2.1.1 created 1961, modified 1982, modified 2002, deleted 2005
1.2.1.6 created 1961, deleted 1965
1.2.1.14 created 1961, deleted 1984
1.2.1.34 created 1972, deleted 1983 [transferred to EC 1.1.1.180, deleted 1984]
1.2.1.35 created 1972, deleted 1984
1.2.1.37 created 1972, deleted 1984
1.2.1.55 created 1990, deleted 2003
1.2.1.56 created 1990, deleted 2003