To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 7. Blocking activity of MIG-23 inhibits the elongation of MSP fibers in vitro. However, the elongation of MSP fiber was slower when extract of sperm treated with MIG-23 antiserum 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