Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior
Type
Blog Post
Published
March 5, 2019, 1:08 p.m.
...promoter is expressed. Cre-mediated deletion of one or several of these genes permits the expression of genes...activate the expression of a different fluorescent protein. Therefore, each cell could express a unique combination...copy of the transgene expressing either YFP or CFP, and cells that do not express Cre fluorescing with ...the low expression of XFP of Brainbow by incorporating a Tet-Off system to boost XFP expression. The increased...variety of colors when a combination of XFP are expressed. Each cell remains the same color for its entire...of the downstream OFP, GFP, or RFP. Cells that express the construct but do not undergo recombination ...truncated YFP.
In Thy1-Brainbow mice, some neurons expressed as many as 16 copies of the injected transgene...