FLEx Technology and Optogenetics: Flipping the switch on gene expression with high spatial and temporal resolution
Type
Blog Post
Published
Oct. 17, 2019, 12:28 p.m.
...cell-type specific promoters; however, those usually drive weak expression of downstream genes. Strong cell-specific...Optogenetic FLEx vectors contain a strong promoter upstream of an opsin gene (e.g., channelrhodopsin-2...cell-specific promoters, on the other side, are too long for rAAVs, which can only package sequences shorter... the antisense orientation with respect to the promoter to prevent its expression, and is flanked (“floxed...rAAVs expressing Cre under a specific cell-type promoter. Once injected into the brain, the viruses infect...thereby enabling its expression under a strong promoter only in specific neuronal cells. FLEx ensures,...for analyzing the neural circuits of behavior." Trends in cognitive sciences 15.12 (2011): 592-600. PubMed...