Li Jiang, Xin Xie, Ni Su, Dasheng Zhang, Xianjun Chen, Xiaochen Xu, Bibi Zhang, Kaiyi Huang, Jingwei Yu, Mengyue Fang, Bingkun Bao, Fangting Zuo, Lipeng Yang, Rui Zhang, Huiwen Li, Xinyi Huang, Zhengda Chen, Qingmei Zeng, Renmei Liu, Qiuning Lin, Yuzheng Zhao, Aiming Ren, Linyong Zhu, Yi Yang
Fluorescent RNAs, aptamers that bind and activate small fluorogenic dyes, have provided a particularly attractive approach to visualizing RNAs in live cells. However, the simultaneous imaging of multiple RNAs remains challenging due to a lack of bright and stable fluorescent RNAs with bio-orthogonality and suitable spectral properties. Here, we develop the Clivias, a series of small, monomeric and stable orange-to-red fluorescent RNAs with large Stokes shifts of up to 108 nm, enabling the simple and robust imaging of RNA with minimal perturbation of the target RNA's localization and functionality...
September 18, 2023: Nature Methods