To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4 Live imaging for Δ50cyclin B2-Venus in the GDF9-Ccnb1−/− oocytes. The GDF9-Ccnb1−/− oocytes expressing Δ50cyclin B2-Venus (Red) with time shown (h:min:s) relative to the release from IBMX. Bar, 30 μm. The cyclin B2/CDK1 complex inhibits separase activity in mouse oocyte meiosis I Jian Li, Ying-Chun Ouyang, Chun-Hui Zhang, Wei-Ping Qian, and Qing-Yuan Sun Development 2019. 146:None-None; doi: 10.1242/dev.182519 Download Original Video