Chimeric TALE recombinases with programmable DNA sequence specificity.
Chimeric TALE recombinases with programmable DNA sequence specificity.
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DOI:
10.1093/nar/gks875
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发表时间:
2012-11
影响因子:
14.9
通讯作者:
Barbas CF 3rd
中科院分区:
文献类型:
--
作者:
Mercer AC;Gaj T;Fuller RP;Barbas CF 3rd
Site-specific recombinases are powerful tools for genome engineering. Hyperactivated variants of the resolvase/invertase family of serine recombinases function without accessory factors, and thus can be re-targeted to sequences of interest by replacing native DNA-binding domains (DBDs) with engineered zinc-finger proteins (ZFPs). However, imperfect modularity with particular domains, lack of high-affinity binding to all DNA triplets, and difficulty in construction has hindered the widespread adoption of ZFPs in unspecialized laboratories. The discovery of a novel type of DBD in transcription activator-like effector (TALE) proteins from Xanthomonas provides an alternative to ZFPs. Here we describe chimeric TALE recombinases (TALERs): engineered fusions between a hyperactivated catalytic domain from the DNA invertase Gin and an optimized TALE architecture. We use a library of incrementally truncated TALE variants to identify TALER fusions that modify DNA with efficiency and specificity comparable to zinc-finger recombinases in bacterial cells. We also show that TALERs recombine DNA in mammalian cells. The TALER architecture described herein provides a platform for insertion of customized TALE domains, thus significantly expanding the targeting capacity of engineered recombinases and their potential applications in biotechnology and medicine.
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影响因子:
14.9
作者:
Li T;Huang S;Jiang WZ;Wright D;Spalding MH;Weeks DP;Yang B
通讯作者:
Yang B
DOI:
10.1073/pnas.1533177100
发表时间:
2003-07-22
影响因子:
11.1
作者:
Akopian, A;He, JY;Stark, WM
通讯作者:
Stark, WM
DOI:
10.1073/pnas.040552697
发表时间:
2000-02-15
影响因子:
11.1
作者:
Beerli, RR;Dreier, B;Barbas, CF
通讯作者:
Barbas, CF
影响因子:
56.9
作者:
Boch, Jens;Scholze, Heidi;Bonas, Ulla
通讯作者:
Bonas, Ulla
影响因子:
5.6
作者:
Dreier, B;Segal, DJ;Barbas, CF
通讯作者:
Barbas, CF