Control of the gene expression in eukaryotic cells
申请人:Calgene LLC
公开号:EP1507010A2
公开(公告)日:2005-02-16
DNA constructs and other compositions and methods for controlling gene expression in eukaryotic cells and organisms are derived from bacterial quorum sensing systems. One or more cis elements from the lux1 promoter ("lux box") or a functionally similar sequence are incorporated in a eukaryotic promoter. A receptor protein from the LuxR family of transcriptional regulators, upon binding an acylated homoserine lactone (AHL) compound, interacts with the lux box, modulating the activity of the promoter.
DNA constructs and other compositions and methods for controlling gene expression in eukaryotic cells and organisms are derived from bacterial quorum sensing systems. One or more cis elements from the luxI promoter (“lux box”) or a functionally similar sequence are incorporated in a eukaryotic promoter. A receptor protein from the LuxR family of transcriptional regulators, upon binding an acylated homoserine lactone (AHL) compound, interacts with the lux box, modulating the activity of the promoter.
Diastereoselective addition of α-hydroxyalkyl and α-alkoxyalkyl radicals to chiral 4-methyleneoxazolidin-5-ones
作者:Stephen G. Pyne、Karl Schafer
DOI:10.1016/s0040-4020(98)00259-2
日期:1998.5
A method for preparing optically active homoserine derivatives via the photoinduced radical additions of alcohols and ethers to the chiral 4-methyleneoxazolidin-5-ones 1 and 2 has been achieved. These photoadducts, however, are readily prone to epimerization under the conditions required for their deprotection. (C) 1998 Elsevier Science Ltd. All rights reserved.
ARIZA, JESUS;FONT, JOSEP;ORTUNO, ROSA M., TETRAHEDRON, 46,(1990) N, C. 1931-1942