Figure 2From: Luciferase activity under direct ligand-dependent control of a muscarinic acetylcholine receptorFusion constructs and deletion mutants used in the study. Mutants were generated by successive deletion of N- and C-terminal domains of the enzyme and loop portions of the receptor (deleted portions are given). For control experiments luciferase was also integrated into ICL2 (#21) and fused to a truncated M3R only consisting of TMH1-5 (#22).Back to article page