2-hydroxymuconate-semialdehyde hydrolase

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2-hydroxymuconate-semialdehyde hydrolase
Identifiers
EC no. 3.7.1.9
CAS no. 54004-61-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, 2-hydroxymuconate-semialdehyde hydrolase (EC 3.7.1.9) is an enzyme that catalyzes the chemical reaction

 
H2O
HCO2H
2-hydroxymuconate-semialdehyde hydrolase
H2O
HCO2H
 

The two substrates of this enzyme are 2-hydroxymuconate semialdehyde and water. Its products are 2-oxopent-4-enoic acid and formic acid. [1] [2] [3]

This enzyme belongs to the family of hydrolases, specifically those acting on carbon-carbon bonds in ketonic substances. The systematic name of this enzyme class is 2-hydroxymuconate-semialdehyde formylhydrolase. Other names in common use include 2-hydroxy-6-oxohepta-2,4-dienoate hydrolase, 2-hydroxymuconic semialdehyde hydrolase, HMSH, and HOD hydrolase. This enzyme participates in 5 metabolic pathways: benzoate degradation via hydroxylation, toluene and xylene degradation, 1,4-dichlorobenzene degradation, carbazole degradation, and styrene degradation.

Structural studies

As of late 2007, 10 structures have been solved for this class of enzymes, with PDB accession codes 1IUN, 1IUO, 1IUP, 1UK6, 1UK7, 1UK8, 1UK9, 1UKA, 1UKB, and 2D0D.

References

  1. Enzyme 3.7.1.9 at KEGG Pathway Database.
  2. Harayama S, Rekik M, Wasserfallen A, Bairoch A (1987). "Evolutionary relationships between catabolic pathways for aromatics: conservation of gene order and nucleotide sequences of catechol oxidation genes of pWW0 and NAH7 plasmids". Molecular and General Genetics MGG. 210 (2): 241–247. doi:10.1007/BF00325689. PMID   3481421. S2CID   20302884.
  3. Sala-Trepat JM, Evans WC (1971). "The meta cleavage of catechol by Azotobacter species 4-Oxalocrotonate pathway". European Journal of Biochemistry. 20 (3): 400–13. doi: 10.1111/j.1432-1033.1971.tb01406.x . PMID   4325686.