The Enzyme Database

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Accepted name: L-tyrosine isonitrile desaturase/decarboxylase
Reaction: (2S)-3-(4-hydroxyphenyl)-2-isocyanopropanoate + 2-oxoglutarate + O2 = 4-[(E)-2-isocyanoethenyl]phenol + succinate + 2 CO2 + H2O
Glossary: (2S)-3-(4-hydroxyphenyl)-2-isocyanopropanoic acid = L-tyrosine isonitrile
rhabduscin = N-[(2S,3S,4R,5S,6R)-4,5-dihydroxy-6-{4-[(E)-2-isocyanoethenyl]phenoxy}-2-methyloxan-3-yl]acetamide
Other name(s): pvcB (gene name)
Systematic name: (2S)-3-(4-hydroxyphenyl)-2-isocyanopropanoate,2-oxoglutarate:oxygen oxidoreductase (decarboxylating)
Comments: The enzyme, characterized from the bacterium Xenorhabdus nematophila, is involved in rhabduscin biosynthesis. The enzyme is a member of the Fe2+, 2-oxoglutarate-dependent oxygenases. It is similar to EC, L-tyrosine isonitrile desaturase. However, the latter does not catalyse a decarboxylation of the substrate.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Crawford, J.M., Portmann, C., Zhang, X., Roeffaers, M.B. and Clardy, J. Small molecule perimeter defense in entomopathogenic bacteria. Proc. Natl. Acad. Sci. USA 109 (2012) 10821–10826. [DOI] [PMID: 22711807]
2.  Zhu, J., Lippa, G.M., Gulick, A.M. and Tipton, P.A. Examining reaction specificity in PvcB, a source of diversity in isonitrile-containing natural products. Biochemistry 54 (2015) 2659–2669. [DOI] [PMID: 25866990]
[EC created 2018]

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