To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 6. Blocking activity of MIG-23 inhibits the elongation of MSP fibers in vitro. MSP fiber elongated in the in vitro system in which extract of sperm treat with preimmune serum was added. MIG-23 is involved in sperm migration by modulating extracellular ATP levels in Ascaris suum Qiushi Wang, Ruijun He, Lianwan Chen, Qi Zhang, Jin Shan, Peng Wang, Xia Wang, and Yanmei Zhao Development 2022. 149:None-None; doi: 10.1242/dev.200478 Download Original Video