Fujita Yasuko, Giga-Hama Yuko, Takegawa Kaoru
Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan.
Yeast. 2005 Feb;22(3):193-202. doi: 10.1002/yea.1201.
We describe the development of a new transformation system, using multiple auxotrophic marker genes, for the fission yeast Schizosaccharomyces pombe. We developed three new auxotrophic marker genes (arg12(+), tyr1(+) and ade7(+)) and generated a new host strain, YF043, by Cre-loxP-mediated gene disruption. YF043 possessed six mutated biosynthetic genes (leu1-32, ura4-M190T, arg12::loxP, tyr1::loxP, ade7::loxP and his2::loxP). The combination of this host strain and the new selectable markers can be used for gene disruption using the same preexisting transformation systems. In addition, Sz. pombe vectors were constructed, containing selectable marker genes that complement the auxotrophies of YF043. These new vectors are available for gene disruption and heterologous protein expression in strain YF043. The new Sz. pombe host strain will be a useful tool for molecular genetic studies of Sz. pombe where multiple recombinant modifications or multiple mutations are needed.
我们描述了一种用于裂殖酵母粟酒裂殖酵母的新转化系统的开发,该系统使用多个营养缺陷型标记基因。我们开发了三个新的营养缺陷型标记基因(arg12(+)、tyr1(+)和ade7(+)),并通过Cre-loxP介导的基因破坏产生了一个新的宿主菌株YF043。YF043拥有六个突变的生物合成基因(leu1-32、ura4-M190T、arg12::loxP、tyr1::loxP、ade7::loxP和his2::loxP)。该宿主菌株与新的选择标记的组合可用于使用相同的现有转化系统进行基因破坏。此外,构建了粟酒裂殖酵母载体,其包含补充YF043营养缺陷型的选择标记基因。这些新载体可用于YF043菌株中的基因破坏和异源蛋白表达。新的粟酒裂殖酵母宿主菌株将成为在需要多个重组修饰或多个突变的粟酒裂殖酵母分子遗传学研究中的有用工具。