SENSOR SET-UP: To detect a small molecule of interest (the ligand), a conditionally stable ligand-binding domain (LBD) is fused to a reporter, such as green fluorescent protein (GFP). The complex degrades if the ligand is not present (1), and activates the reporter when it is (2). In another demonstration of this sensor, researchers connected the LBD to a DNA-binding domain (DBD) (3). When the ligand is present, the DBD hooks onto to a site in the genome (red), which results in the expression of a specified reporter gene (yellow) (4).© GEORGE RETSECK; ELIFE, 4:E10606, 2015See the full article here.



Interested in reading more?

The Scientist ARCHIVES

Become a Member of

Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member?