Figure 4. Co-migration of mRFP labeled T-cadherin (Tcad-mRFP) and GFP labeled Phogrin in ∆-cell. (A and B) Islet cells were transfected with insulin promoter driving Phogrin-GFP and CMV promoter driving Tcad-mRFP. White arrow points at a yellow mobilized granule. Pictures taken with approximately 2 s interval. (C and D) Cells were instead transfected with CMV promoter driven synaptophysin-GFP and insulin promoter driven Tcad-mRFP. Arrow points to Tcad positive structure mobilized over 5 s that does not overlap with synaptophysin-GFP. See also Video 1. Scale bars: 5 μm. (A and B) are snapshot images from Video 1.