L-lysine 6-oxidase

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L-lysine 6-oxidase

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In enzymology, a L-lysine 6-oxidase (EC 1.4.3.20) is an enzyme that catalyzes the chemical reaction

L-lysine + O₂ + H₂O

\rightleftharpoons

2-aminoadipate 6-semialdehyde + H₂O₂ + NH₃

The 3 substrates of this enzyme are L-lysine, O₂, and H₂O, whereas its 3 products are 2-aminoadipate 6-semialdehyde, H₂O₂, and NH₃.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH2 group of donors with oxygen as acceptor. The systematic name of this enzyme class is L-lysine:oxygen 6-oxidoreductase (deaminating). Other names in common use include L-lysine-epsilon-oxidase, Lod, LodA, and marinocine.

References

Lucas-Elio P, Gomez D, Solano F, Sanchez-Amat A (2006). "The antimicrobial activity of marinocine, synthesized by Marinomonas mediterranea, is due to hydrogen peroxide generated by its lysine oxidase activity". J. Bacteriol. 188 (7): 2493–501. doi:10.1128/JB.188.7.2493-2501.2006. PMC 1428416. PMID 16547036.
Gomez D, Lucas-Elio P, Sanchez-Amat A, Solano F (2006). "A novel type of lysine oxidase: L-lysine-epsilon-oxidase". Biochim. Biophys. Acta. 1764 (10): 1577–85. doi:10.1016/j.bbapap.2006.08.014. PMID 17030025.

v t e CH-NH₂ oxidoreductases (EC 1.4) - primarily amino acid oxidoreductases
1.4.1: NAD/NADP acceptor	Glutamate dehydrogenase GLUD1 GLUD2 Glutamate synthase (NADPH)
1.4.3: oxygen acceptor	D-amino acid oxidase Amine oxidase (Copper-containing (Lysyl Diamine Primary-amine)) (Flavin-containing (Monoamine)))
1.4.4: disulfide acceptor	Glycine cleavage system
1.4.99: other acceptors	D-amino acid dehydrogenase Amine dehydrogenase

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)

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