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Integration and exchange of split dCas9 domains for transcriptional controls in mammalian cells

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  • Dacheng Ma

    (Center for Synthetic and System Biology, Tsinghua National Lab for Information Science and Technology, Tsinghua University)

  • Shuguang Peng

    (Center for Synthetic and System Biology, Tsinghua National Lab for Information Science and Technology, Tsinghua University)

  • Zhen Xie

    (Center for Synthetic and System Biology, Tsinghua National Lab for Information Science and Technology, Tsinghua University)

Abstract

Programmable and precise regulation of dCas9 functions in response to multiple molecular signals by using synthetic gene circuits will expand the application of the CRISPR-Cas technology. However, the application of CRISPR-Cas therapeutic circuits is still challenging due to the restrictive cargo size of existing viral delivery vehicles. Here, we construct logic AND circuits by integrating multiple split dCas9 domains, which is useful to reduce the size of synthetic circuits. In addition, we engineer sensory switches by exchanging split dCas9 domains, allowing differential regulations on one gene, or activating two different genes in response to cell-type specific microRNAs. Therefore, we provide a valuable split-dCas9 toolkit to engineer complex transcription controls, which may inspire new biomedical applications.

Suggested Citation

  • Dacheng Ma & Shuguang Peng & Zhen Xie, 2016. "Integration and exchange of split dCas9 domains for transcriptional controls in mammalian cells," Nature Communications, Nature, vol. 7(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13056
    DOI: 10.1038/ncomms13056
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    Cited by:

    1. Shunsuke Kawasaki & Hiroki Ono & Moe Hirosawa & Takeru Kuwabara & Shunsuke Sumi & Suji Lee & Knut Woltjen & Hirohide Saito, 2023. "Programmable mammalian translational modulators by CRISPR-associated proteins," Nature Communications, Nature, vol. 14(1), pages 1-17, December.

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