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nicotine degradation I (pyridine pathway)

State Icon Reaction EC-Number Confidence maximal confidence score from EnzymeDetector
4-aminobutanoate + 2-oxoglutarate <=> succinate_semialdehyde + L-glutamate 2.6.1.19 4-aminobutyrate---2-oxoglutarate transaminase
2.6.1.2 alanine transaminase
2.6.1.22 (S)-3-amino-2-methylpropionate transaminase
2.6.1.29 diamine transaminase
2.6.1.48 5-aminovalerate transaminase





(R)-nicotine + H2O + acceptor <=> 6-hydroxy-D-nicotine + reduced_acceptor 1.5.99.4 nicotine dehydrogenase

H+ + 2,6-Dihydroxypyridine + O2 + NADH <=> H2O + NAD+ + 2,3,6-Trihydroxypyridine 1.14.13.10 2,6-dihydroxypyridine 3-monooxygenase

6-hydroxy-L-nicotine + O2 <=> 6-hydroxy-N-methylmyosmine + H2O2 1.5.3.5 (S)-6-hydroxynicotine oxidase

1-(6-hydroxypyrid-3-yl)-4-(methylamino)-butan-1-one + H2O + acceptor <=> 1-(2,6-dihydroxypyridin-3-yl)-4-(methylamino)butan-1-one + reduced_acceptor 1.5.99.14 6-hydroxypseudooxynicotine dehydrogenase

6-hydroxy-D-nicotine + O2 <=> 6-hydroxy-N-methylmyosmine + H2O2 1.5.3.6 (R)-6-hydroxynicotine oxidase

1-(2,6-dihydroxypyridin-3-yl)-4-(methylamino)butan-1-one + H2O <=> 2,6-Dihydroxypyridine + 4-methylaminobutanoate + H+ 3.7.1.19 2,6-dihydroxypseudooxynicotine hydrolase

4-methylaminobutanoate + O2 + H2O <=> 4-aminobutanoate + formaldehyde + H2O2 1.5.3.19 4-methylaminobutanoate oxidase (formaldehyde-forming)

2,3,6-Trihydroxypyridine + acceptor <=> nicotine_blue + reduced_acceptor not assigned

2,3,6-Trihydroxypyridine <=> 2,3,6-Trihydroxypyridine + H+ not assigned

Nicotine + H2O + oxidized_pseudoazurin <=> 6-hydroxy-L-nicotine + reduced_pseudoazurin + H+ 1.5.99.4 nicotine dehydrogenase

2,3,6-Trihydroxypyridine + H2O <=> 2-Oxoglutaramate not assigned

nicotine_blue_leuco_form + NADP+ <=> nicotine_blue + NADPH + H+ 1.1.1.328 nicotine blue oxidoreductase

4-methylaminobutanoate + H2O + O2 <=> succinate_semialdehyde + methylamine + H2O2 1.5.3.21 4-methylaminobutanoate oxidase (methylamine-forming)

6-hydroxy-N-methylmyosmine + H2O <=> 1-(6-hydroxypyrid-3-yl)-4-(methylamino)-butan-1-one 1.5.3.5 (S)-6-hydroxynicotine oxidase
1.5.3.6 (R)-6-hydroxynicotine oxidase


2-Oxoglutaramate + H2O <=> 2-oxoglutarate + NH3 3.5.1.111 2-oxoglutaramate amidase
3.5.1.3 omega-amidase
3.5.1.36 N-methyl-2-oxoglutaramate hydrolase



succinate_semialdehyde + NADP+ + H2O <=> NADPH + succinate + H+ 1.1.1.21 aldose reductase
1.2.1.16 succinate-semialdehyde dehydrogenase [NAD(P)+]
1.2.1.24 succinate-semialdehyde dehydrogenase (NAD+)
1.2.1.26 2,5-dioxovalerate dehydrogenase
1.2.1.79 succinate-semialdehyde dehydrogenase (NADP+)





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