Conditional U1 Gene Silencing in Toxoplasma gondii.
Conditional U1 Gene Silencing in Toxoplasma gondii.
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DOI:
10.1371/journal.pone.0130356
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Meissner M
中科院分区:
文献类型:
--
作者:
Pieperhoff MS;Pall GS;Jiménez-Ruiz E;Das S;Melatti C;Gow M;Wong EH;Heng J;Müller S;Blackman MJ;Meissner M
The functional characterisation of essential genes in apicomplexan parasites, such as Toxoplasma gondii or Plasmodium falciparum, relies on conditional mutagenesis systems. Here we present a novel strategy based on U1 snRNP-mediated gene silencing. U1 snRNP is critical in pre-mRNA splicing by defining the exon-intron boundaries. When a U1 recognition site is placed into the 3’-terminal exon or adjacent to the termination codon, pre-mRNA is cleaved at the 3’-end and degraded, leading to an efficient knockdown of the gene of interest (GOI). Here we describe a simple method that combines endogenous tagging with DiCre-mediated positioning of U1 recognition sites adjacent to the termination codon of the GOI which leads to a conditional knockdown of the GOI upon rapamycin-induction. Specific knockdown mutants of the reporter gene GFP and several endogenous genes of T. gondii including the clathrin heavy chain gene 1 (chc1), the vacuolar protein sorting gene 26 (vps26), and the dynamin-related protein C gene (drpC) were silenced using this approach and demonstrate the potential of this technology. We also discuss advantages and disadvantages of this method in comparison to other technologies in more detail.
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影响因子:
6.4
作者:
Chen AL;Kim EW;Toh JY;Vashisht AA;Rashoff AQ;Van C;Huang AS;Moon AS;Bell HN;Bentolila LA;Wohlschlegel JA;Bradley PJ
通讯作者:
Bradley PJ
影响因子:
48
作者:
Andenmatten, Nicole;Egarter, Saskia;Jackson, Allison J;Jullien, Nicolas;Herman, Jean-Paul;Meissner, Markus
通讯作者:
Meissner, Markus
影响因子:
1.5
作者:
ACHBAROU, A;MERCEREAUPUIJALON, O;DUBREMETZ, JF
通讯作者:
DUBREMETZ, JF
影响因子:
16
作者:
Gunderson, SI;Polycarpou-Schwarz, M;Mattaj, IW
通讯作者:
Mattaj, IW
影响因子:
14.9
作者:
Jullien, N;Sampieri, F;Herman, JP
通讯作者:
Herman, JP