Movie 4

Surviving Ccdc151 knockout animals do not contain any sperm in epididymis and vas deferens. Sperm was collected from 6 weeks old males and deposited on a petri dish in PBS media and filmed at 20X magnification on an inverted microscope. Movie 4: No sperm was observed in preparation from the Ccdc151 homozygous knockout male; Movie 5: Sperm collected from the WT littermate.