EC 1.2.1.61     
Accepted name: 4-hydroxymuconic-semialdehyde dehydrogenase
Reaction: 4-hydroxymuconic semialdehyde + NAD+ + H2O = maleylacetate + NADH + 2 H+
Systematic name: 4-hydroxymuconic-semialdehyde:NAD+ oxidoreductase
Comments: Involved in the 4-nitrophenol degradation pathway.
References:
1.  Spain, J.C. and Gibson, D.T. Pathway for bioremediation of p-nitrophenol in a Moraxella sp. Appl. Environ. Microbiol. 57 (1991) 812–819. [PMID: 16348446]
[EC 1.2.1.61 created 2000]