Transacylases of the paclitaxel biosynthetic pathway
申请人:Washington State University Research Foundation
公开号:US20030108891A1
公开(公告)日:2003-06-12
Transacylase enzymes and the use of such enzymes to produce paclitaxel and related taxoids, as well as intermediates in the paclitaxel biosynthetic pathway, are disclosed. Also disclosed are nucleic acid sequences encoding such transacylase enzymes such as (but without limitation) C-13 phenylpropanoid side chain-CoA acyltransferase and benzoyl-CoA:3′-N-debenzoyl-2′-deoxytaxol N-benzoyltransferase.
PRODUCTION OF TERPENES AND TERPENOIDS IN GLANDULAR TRICHOME-BEARING PLANTS
申请人:Lange Bernd Markus
公开号:US20120052535A1
公开(公告)日:2012-03-01
Methods for producing heterologous terpenes, terpenoids and/or small molecules in transgenic glandular trichome-bearing plants are provided, as well as the transgenic glandular trichome-bearing plants capable of producing the heterologous terpenes, terpenoids and small molecules. The genetically engineered glandular trichome-bearing plants contain and express one or more genes which encode proteins active in the biosynthetic pathways which produce the terpenes, terpenoids and small molecules. As a result, the essential oil of the transgenic plant is enriched for the heterologous or homologous terpenes, terpenoids and/or small molecules Storage of the essential oil in the glandular trichomes of the plant reduces the volatility and cytotoxic capacity of the heterologous molecules, thereby increasing yield and decreasing damage to the transgenic plant.
Molecular Cloning of a Taxa-4(20),11(12)-dien-5α-ol-O-Acetyl Transferase cDNA from Taxus and Functional Expression in Escherichia coli
作者:Kevin Walker、Anne Schoendorf、Rodney Croteau
DOI:10.1006/abbi.1999.1609
日期:2000.2
the enzyme, from which primers were designed and employed to amplify a transacetylase gene-specific fragment. This radiolabeled, 900-bp amplicon was used as a hybridization probe to screen a cDNA library constructed from poly(A)(+) RNA isolated from induced Taxus cells, from which a full-length transacetylase sequence was obtained. Expression of this clonefrom pCWori(+) in Escherichiacoli JM109 cells
Taxol Biosynthesis: Differential Transformations of Taxadien-5α-ol and Its Acetate Ester by Cytochrome P450 Hydroxylases from Taxus Suspension Cells
作者:Alenka Lovy Wheeler、Robert M Long、Raymond E.B Ketchum、Christopher D Rithner、Robert M Williams、Rodney Croteau
DOI:10.1006/abbi.2001.2377
日期:2001.6
rearrangement) of this olefin precursor to taxa-4(20),11(12)-dien-5 alpha-ol, and further oxygenation and acylation reactions. Based on the abundances of naturally occurring taxoids, the subsequent order of oxygenation of the taxane core is considered to occur at C10, then C2 and C9, followed by C13, and finally C7 and C1. Circumstantial evidence suggests that the acetylation of taxadien-5 alpha-ol
Taxol biosynthesis: Taxane 13α-hydroxylase is a cytochrome P450-dependent monooxygenase
作者:Stefan Jennewein、Christopher D. Rithner、Robert M. Williams、Rodney B. Croteau
DOI:10.1073/pnas.251539398
日期:2001.11.20
reactions that are considered to be mediated by cytochrome P450-dependent monooxygenases. A PCR-based differential display-cloning approach, using Taxus (yew) cells induced for Taxol production, yielded a family of related cytochromeP450genes, one of which was assigned as a taxane 10 beta-hydroxylase by functionalexpression in yeast. The acquired clones that did not function in yeast were heterologously