To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4 The beating of respiratory cilia in Lrrc23Δ2/Δ2 mice. LRRC23 is a conserved component of the radial spoke that is necessary for sperm motility and male fertility in mice Xin Zhang, Jiang Sun, Yonggang Lu, Jintao Zhang, Keisuke Shimada, Taichi Noda, Shuqin Zhao, Takayuki Koyano, Makoto Matsuyama, Shushu Zhou, Jiayan Wu, Masahito Ikawa, and Mingxi Liu J Cell Sci 2021. 134:None-None; doi: 10.1242/jcs.259381 Download Original Video