申请人:University of Wyoming
公开号:US10041057B2
公开(公告)日:2018-08-07
Methods and constructs are provided for controlling processes in live animals, plants or microbes via genetically engineered near-infrared light-activated or light-inactivated proteins including chimeras including the photosensory modules of bacteriohytochromes and output modules that possess enzymatic activity and/or ability to bind to DNA, RNA, protein, or small molecules. DNA encoding these proteins are introduced as genes into live animals, plants or microbes, where their activities can be turned on by near-infrared light, controlled by the intensity of light, and turned off by near-infrared light of a different wavelength than the activating light. These proteins can regulate diverse cellular processes with high spatial and temporal precision, in a nontoxic manner, often using external light sources. For example, near-infrared light-activated proteins possessing nucleotidyl cyclase, protein kinase, protease, DNA-binding and RNA-binding activities are useful to control signal transduction, cell apoptosis, proliferation, adhesion, differentiation and other cell processes.
本发明提供了通过基因工程近红外光激活或光灭活蛋白质(包括细菌色素的光感模块和具有酶活性和/或与 DNA、RNA、蛋白质或小分子结合能力的输出模块的嵌合体)控制活体动物、植物或微生物过程的方法和构建物。编码这些蛋白质的 DNA 可作为基因导入活体动物、植物或微生物中,它们的活动可由近红外光开启,由光的强度控制,也可由与激活光波长不同的近红外光关闭。这些蛋白质能够以无毒的方式,通常利用外部光源,在空间和时间上高精度地调节各种细胞过程。例如,具有核苷酸环化酶、蛋白激酶、蛋白酶、DNA 结合和 RNA 结合活性的近红外光激活蛋白可用于控制信号转导、细胞凋亡、增殖、粘附、分化和其他细胞过程。