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Your query returned 1 entry. Printable version
EC | 1.14.14.160 | ||
Accepted name: | zealexin A1 synthase | ||
Reaction: | (S)-β-macrocarpene + 3 O2 + 3 [reduced NADPH—hemoprotein reductase] = zealexin A1 + 4 H2O + 3 [oxidized NADPH—hemoprotein reductase] (overall reaction) (1a) (S)-β-macrocarpene + O2 + [reduced NADPH—hemoprotein reductase] = [(4S)-4-(5,5-dimethylcyclohex-1-en-1-yl)-cyclohex-1-en-1-yl]methanol + H2O + [oxidized NADPH—hemoprotein reductase] (1b) [(4S)-4-(5,5-dimethylcyclohex-1-en-1-yl)-cyclohex-1-en-1-yl] methanol + O2 + [reduced NADPH—hemoprotein reductase] = (4S)-4-(5,5-dimethylcyclohex-1-en-1-yl)cyclohex-1-ene-1-carbaldehyde + 2 H2O + [oxidized NADPH—hemoprotein reductase] (1c) (4S)-4-(5,5-dimethylcyclohex-1-en-1-yl)cyclohex-1-ene-1-carbaldehyde + O2 + [reduced NADPH—hemoprotein reductase] = zealexin A1 + H2O + [oxidized NADPH—hemoprotein reductase] |
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For diagram of zealexin biosynthesis, click here | |||
Glossary: | (S)-β-macrocarpene = (1′S)-4′,5,5-trimethyl-1,1′-bi(cyclohexane)-1,3′-diene zealexin A1 = (4S)-4-(5,5-dimethylcyclohex-1-en-1-yl)cyclohex-1-ene-1-carboxylate |
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Other name(s): | CYP71Z18 (gene name) | ||
Systematic name: | (S)-β-macrocarpene,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (zealexin A1-forming) | ||
Comments: | A cytochrome P-450 (heme thiolate) enzyme characterized from maize. The enzyme sequentially oxidizes(S)-β-macrocarpene via alcohol and aldehyde intermediates to form zealexin A1, a maize phytoalexin that provides biochemical protection against fungal infection. | ||
Links to other databases: | BRENDA, EXPASY, Gene, KEGG, MetaCyc | ||
References: |
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