Part:BBa_K3728004
KanR/pTol2
ThisTol2 transposon system is highly used in zebrafish transgenesis. The transposase protein (TPase) is from the Medaka fish (Oryzias latipes) aka Japanese rice fish, which catalyzes the transposition of the Tol2 elements through cut-and-paste mechanism. The minimal transposable Tol2 sequence (mTol2) contains 200-bp left arm and 150-bp right arm[1]. Up to 11kb DNA insert between Tol2 sequence can be integrated into the genome of nearly all vertebrates including zebrafish, frog, chicken, mouse, and human [2].
ThisA further application in synthetic biology was demonstrated by Jun Ni, et. al.[3], in which the recombinant TPase protein is fully functional in HeLa cell line and Zebrafish germline cells. In addition, the TPase can be expressed under T7 promoter in E. coli BL21 and purified with N-terminal 6xHis tag. The transposase is active in vitro and mediated the integration of DNA fragments between plasmids with Tol2 elements.
ThisIn our study, we constructed BioBrick Parts of TPase (Part:BBa_K3728000) and the BioBrick compatible Tol2 vectors (Part:BBa_K3728003) with reporter (KanR:Part:BBa_K3728004; GFP:Part:BBa_K3728005; RFP:Part:BBa_K3728006; amilCP:Part:BBa_K3728007) and Phi29 DNA polymerase genes (Part:BBa_K3728008). We prepared the In vitro transcription-translation (TXTL) system [4][5]and expressed the functional reporter proteins. The recombinant TPase and Phil29 DNA polymerase with His tag were expressed in E. coli BL21. The purified proteins were functional in the plasmid integration assay and rolling circle amplification(RCA) application, respectively.
Note: The map was generated and sponsored by SnapGene.
Note: The map was generated and sponsored by SnapGene.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
- ↑ Urasaki A, Morvan G, Kawakami K. Functional dissection of the Tol2 transposable element identified the minimal cis-sequence and a highly repetitive sequence in the subterminal region essential for transposition. Genetics. 2006 Oct;174(2):639-49. doi: 10.1534/genetics.106.060244.
- ↑ Kawakami K. Tol2: a versatile gene transfer vector in vertebrates. Genome Biol. 2007;8 Suppl 1(Suppl 1):S7. doi: 10.1186/gb-2007-8-s1-s7
- ↑ Ni J, Wangensteen KJ, Nelsen D, Balciunas D, Skuster KJ, Urban MD, Ekker SC. Active recombinant Tol2 transposase for gene transfer and gene discovery applications. Mob DNA. 2016 Mar 31;7:6. doi: 10.1186/s13100-016-0062-z.
- ↑ Garenne D, Noireaux V. Cell-free transcription-translation: engineering biology from the nanometer to the millimeter scale. Curr Opin Biotechnol. 2019 Aug;58:19-27. doi: 10.1016/j.copbio.2018.10.007.
- ↑ Rustad M, Eastlund A, Marshall R, Jardine P, Noireaux V. Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System. J Vis Exp. 2017 Aug 17;(126):56144. doi: 10.3791/56144.
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