A LexAop > UAS > QUAS trimeric plasmid to generate inducible and interconvertible Drosophila overexpression transgenes.

A LexAop > UAS > QUAS trimeric plasmid to generate inducible and interconvertible Drosophila overexpression transgenes.
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DOI:
10.1038/s41598-022-07852-7
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发表时间:
2022-03-09
期刊:
影响因子:
4.6
通讯作者:
Baena-Lopez LA
Baena-Lopez LA
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wendler F;Park S;Hill C;Galasso A;Chang KR;Awan I;Sudarikova Y;Bustamante-Sequeiros M;Liu S;Sung EY;Aisa-Bonoko G;Kim SK;Baena-Lopez LA

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存在三个独立的二元系统的条件基因表达(Gal 4/UAS;莱克萨/LexAop; QF/QUAS),大大扩展了多功能的遗传分析在果蝇,然而,这些工具的实验应用是有限的,需要产生多个集合的不可互换的转基因果蝇品系的每个诱导基因表达系统。为了解决这一实际限制,我们开发了一种模块化载体,其包含来自所有三种二元系统的调控元件,使得能够实现转基因的Gal 4-、莱克萨-或QF-依赖性表达。我们的方法还纳入DNA元件,促进独立的位点特异性重组和消除的监管UAS,LexAop或QUAS模块的空间和时间控制,从而提供了前所未有的可能性和后勤优势,在体内遗传调节和高效的互变过表达转基因飞线。
The existence of three independent binary systems for conditional gene expression (Gal4/UAS; LexA/LexAop; QF/QUAS) has greatly expanded versatile genetic analyses in the Drosophila melanogaster; however, the experimental application of these tools is limited by the need to generate multiple collections of noninterchangeable transgenic fly strains for each inducible gene expression system. To address this practical limitation, we developed a modular vector that contains the regulatory elements from all three binary systems, enabling Gal4-, LexA- or QF-dependent expression of transgenes. Our methods also incorporate DNA elements that facilitate independent site-specific recombination and elimination of regulatory UAS, LexAop or QUAS modules with spatial and temporal control, thus offering unprecedented possibilities and logistical advantages for in vivo genetic modulation and efficient interconversion of overexpression transgenic fly lines.
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