The enzyme has been characterized from the fungus Coprinus cinereus. Also gives germacrene A and alpha-muurolene, see EC 4.2.3.23, germacrene-A synthase and EC 4.2.3.125, alpha-muurolene synthase.
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The enzyme appears in viruses and cellular organisms
The enzyme has been characterized from the fungus Coprinus cinereus. Also gives germacrene A and alpha-muurolene, see EC 4.2.3.23, germacrene-A synthase and EC 4.2.3.125, alpha-muurolene synthase.
the major cyclization products of Cop3 and its loop mutants are derived from an E,E-germacradienyl cation formed after ionization and 1,10 cyclization of E,E-farnesyl diphosphate. alpha-Muurolene is 30% of the products formed from (2E,6E)-farnesyl diphosphate
SasesquiTPS1 with (2E,6E)-farnesyl diphosphate as substrate produces a complex mixture of mono- and bicyclic sesquiterpenes. The main products as analysed by GC-MS and GC-FID are the cyclic alcohol germacrene D-4-ol, and helminthogermacrene. Also present are alpha-bulnesene, gamma-muurolene, alpha- and beta-selinenes, as well as several other minor bicyclic compounds, alpha-humulene and nerolidol are detected in proportions below 5%
product profiling by GC-MS analysis, overview. alpha-Muurolene is the major terpenoid compound detected in Cop3 cultures, accounting for about 30% of the total sesquiterpenes detected. Significant amounts of beta-elemene, gamma-muurolene, germacrene D, and delta-cadinene are synthesized in the headspace of Cop3 cultures
seven different sesquiterpenes products, wild-type Cop3 also shows alpha-muurolene synthase activity, EC 4.2.3.125, and produces 30% alpha-muurolene and 35% gemacrene A, product of germacrene A synthase, EC 4.2.3.23, of total products from (2E,6E)-farnesyl diphosphate, product profiling by GC-MS analysis, overview
product profiling by GC-MS analysis, overview. alpha-Muurolene is the major terpenoid compound detected in Cop3 cultures, accounting for about 30% of the total sesquiterpenes detected. Significant amounts of beta-elemene, gamma-muurolene, germacrene D, and delta-cadinene are synthesized in the headspace of Cop3 cultures
the major cyclization products of Cop3 and its loop mutants are derived from an E,E-germacradienyl cation formed after ionization and 1,10 cyclization of E,E-farnesyl diphosphate. alpha-Muurolene is 30% of the products formed from (2E,6E)-farnesyl diphosphate
product profiling by GC-MS analysis, overview. alpha-Muurolene is the major terpenoid compound detected in Cop3 cultures, accounting for about 30% of the total sesquiterpenes detected. Significant amounts of beta-elemene, gamma-muurolene, germacrene D, and delta-cadinene are synthesized in the headspace of Cop3 cultures
seven different sesquiterpenes products, wild-type Cop3 also shows alpha-muurolene synthase activity, EC 4.2.3.125, and produces 30% alpha-muurolene and 35% gemacrene A, product of germacrene A synthase, EC 4.2.3.23, of total products from (2E,6E)-farnesyl diphosphate, product profiling by GC-MS analysis, overview
product profiling by GC-MS analysis, overview. alpha-Muurolene is the major terpenoid compound detected in Cop3 cultures, accounting for about 30% of the total sesquiterpenes detected. Significant amounts of beta-elemene, gamma-muurolene, germacrene D, and delta-cadinene are synthesized in the headspace of Cop3 cultures
structural homology modeling of Cop3 using the crystal structure of aristolochene synthase from Aspergillus terreus. Several polar side chains in the H-alpha1 loops of Cop4 and Cop3 move closer to side chains in the metal-binding DDXXD motif
site-directed mutagenesis, modification of the H-alpha1 loop, the mutant shows highly altered product profile compared to the wild-type enzyme, it does no longer produce gamma-muurolene but large amounts of germacrene A (77%), overview
site-directed mutagenesis, modification of the H-alpha1 loop, the mutant shows only slightly altered product profile compared to the wild-type enzyme, it produces also beta-copaene, cf. EC 4.2.3.127, overview
gene cop3, DNA and amino acid sequence determination and analysis, phylogenetic analysis, recombinant expression in Escherichia coli strain JM109 leading to production of gamma-muurolene
SasesquiTPS1, DNA and amino acid sequence determination and analysis, sequence comparison, functional expression of His6-tagged full-length enzyme in Escherichia coli
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4.2.3.126 gamma-muurolene synthase
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