Provided are caged compounds comprising a ligand that specifically reacts with a receptor not naturally present in mammals. The cage is released from the ligand upon illumination of the compound with light. Also provided are cells transfected with a gene of interest and a gene encoding a receptor, the gene of interest operably linked to a genetic element capable of being induced by the receptor when bound to a ligand, and the receptor not naturally present in the species of the cell. The cells also comprise a caged ligand of the receptor. Additionally provided are methods of inducing a gene of interest in the above cells. Also provided are methods of repressing a gene of interest in a cell using caged ligands of receptors. Methods are additionally provided for inducing elimination of a target sequence in a cell of a species, using a caged ligand and a recombinase.
提供了包含与哺乳动物中自然不存在的受体特异反应的
配体的笼式化合物。当用光照射化合物时,笼子会从
配体中释放出来。还提供了转染了感兴趣
基因和编码受体的
基因的细胞,感兴趣
基因与能够被受体诱导的
基因元件可操作地连接在一起,当受体与
配体结合时,受体在该细胞物种中自然不存在。细胞还包括受体的笼式
配体。此外,提供了在上述细胞中诱导感兴趣
基因的方法。还提供了使用受体的笼式
配体在细胞中抑制感兴趣
基因的方法。此外,还提供了使用笼式
配体和
重组酶在物种的细胞中诱导靶序列的消除的方法。