The enzyme, characterized from the plant Papaver somniferum (opium poppy), catalyses the last step in the biosynthesis of the isoquinoline alkaloid noscapine.
The expected taxonomic range for this enzyme is: Papaver somniferum
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SYSTEMATIC NAME
IUBMB Comments
narcotine hemiacetal:NAD+ 1-oxidoreductase
The enzyme, characterized from the plant Papaver somniferum (opium poppy), catalyses the last step in the biosynthesis of the isoquinoline alkaloid noscapine.
suppression of NOS transcript levels in opium poppy plants subjected to virus-induced gene silencing results in a corresponding reduction in the accumulation of noscapine and an increase in narcotinehemiacetal levels in the latex
complete biosynthesis of noscapine and halogenated alkaloids in yeast and optimizing noscapine production toward scalable manufacturing. Engineered strain contains 25 heterologous plant, bacteria, and mammalian genes and 6 mutant or overexpressed yeast genes. The noscapine biosynthetic pathway incorporates seven endomembrane-localized plant enzymes, highlighting the ability of the yeast to functionally express and properly localize large numbers of heterologous enzymes into the endoplasm reticulum. Noscapine titers were improved by 18000fold (to low mg/l levels) via a combination of enzyme engineering, pathway and strain engineering, and fermentation optimization. Microbial fermentation can be used to produce halogenated alkaloid derivatives, which can ultimately serve as potential drug leads, through feeding amino acid derivatives to strains
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