Part:BBa_K3734005
GAL4
GAL4 is a kind of protein that can find and combined with UAS DNA structure domain.
Contribution
GAL4
GAL4 is a common part in double yeast hybrid system. It can recognize and combine with UAS. Because GAL4 is originated from yeast cells, the activation domain can not work in mammalian cells. Therefore, we only used its combining domain and use it together with VP16 which is an activation domain comes from virus to realize the activation of downstream UAS transcription
1.Pattern diagram
Fig.1 The model diagram of GIP-miR21T-GI-GAL4-4XmiR21T
2.Caution
GAL4 combining domain is universal among eukaryotic cells, but the activation factor needs to be chosen differently according to the chassis creature.
Reference：
[1]Chun Jeih Ryu , Charles E Whitehurst, Jianzhu Chen.Expression of Gal4-VP16 and Gal4-DNA binding domain under the control of the T lymphocyte-specific lck proximal promoter in transgenic mice[J].BMB Rep. 2008 Aug 31;41(8):575-80.
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