The CAG promoter drives expression of full-length human ARL13B (ADP-ribosylation factor-like 13B)fused to mCherry and GECO1.2. The GECO1.2 component is an improved green fluorescent GECI (genetically encoded calcium indicator) with an apparent K>d< of 450 nm. A single copy of the transgene integrated in a non-coding region of mouse Chromosome 1 (position 174,611,546). (J:232710)