2,6-dihydroxypseudooxynicotine hydrolase

2,6-dihydroxypseudooxynicotine hydrolase (EC 3.7.1.19) is an enzyme with systematic name 1-(2,6-dihydroxypyridin-3-yl)-4-(methylamino)butan-1-one hydrolase. This enzyme catalyses the following chemical reaction

1-(2,6-dihydroxypyridin-3-yl)-4-(methylamino)butan-1-one + H₂O

\rightleftharpoons

2,6-dihydroxypyridine + 4-methylaminobutanoate

The enzyme is present in the soil bacterium Arthrobacter nicotinovorans.

References

Gherna RL, Richardson SH, Rittenberg SC (September 1965). "The bacterial oxidation of nicotine. VI. The metabolism of 2,6-dihydroxypseudooxynicotine". The Journal of Biological Chemistry. 240 (9): 3669–74. PMID 5835946.
Sachelaru P, Schiltz E, Igloi GL, Brandsch R (December 2005). "An alpha/beta-fold C--C bond hydrolase is involved in a central step of nicotine catabolism by Arthrobacter nicotinovorans". Journal of Bacteriology. 187 (24): 8516–9. doi:10.1128/jb.187.24.8516-8519.2005. PMC 1317030. PMID 16321959.

v t e Hydrolases: carbon-carbon (EC 3.7)
3.7.1	Fumarylacetoacetate hydrolase Kynureninase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)