To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 Time-series showing a TPC1-decorated vesicle (see pink arrow) moving in an anterograde direction towards the MJ at the end of a primary cultured SMC. Localized TPC1-mediated Ca2+ release from endolysosomes contributes to myoseptal junction development in zebrafish Keira L. Rice, Sarah E. Webb, and Andrew L. Miller J Cell Sci 2022. 135:None-None; doi: 10.1242/jcs.259564 Download Original Video