The Enzyme Database

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Accepted name: isoprene-epoxide—glutathione S-transferase
Reaction: 2-(glutathion-S-yl)-2-methylbut-3-en-1-ol = (3R)-3,4-epoxy-3-methylbut-1-ene + glutathione
For diagram of isoprene biosynthesis and metabolism, click here
Other name(s): isoI (gene name)
Systematic name: 2-(glutathion-S-yl)-2-methylbut-3-en-1-ol lyase [(3R)-3,4-epoxy-3-methylbut-1-ene-forming]
Comments: The enzyme, characterized from the bacterium Rhodococcus sp. AD45, is involved in isoprene degradation. The enzyme can catalyse the glutathione-dependent ring opening of various epoxides, but the highest activity is with (3R)-3,4-epoxy-3-methylbut-1-ene, which is derived from isoprene by EC, alkene monooxygenase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  van Hylckama Vlieg, J.E., Kingma, J., van den Wijngaard, A.J. and Janssen, D.B. A glutathione S-transferase with activity towards cis-1, 2-dichloroepoxyethane is involved in isoprene utilization by Rhodococcus sp. strain AD45. Appl. Environ. Microbiol. 64 (1998) 2800–2805. [PMID: 9687433]
2.  van Hylckama Vlieg, J.E., Kingma, J., Kruizinga, W. and Janssen, D.B. Purification of a glutathione S-transferase and a glutathione conjugate-specific dehydrogenase involved in isoprene metabolism in Rhodococcus sp. strain AD45. J. Bacteriol. 181 (1999) 2094–2101. [PMID: 10094686]
[EC created 2016]

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