To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Time-series showing TPC1-decorated vesicles moving in an anterograde direction towards the MJ (pink arrow), and in a retrograde direction from the MJ (blue arrow) in the SMCs of an intact ~24 hpf embryo. 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