SMARCB1 and Infertility: Four out of nine Snf5 CKO females were infertile whereas the remaining five females gave birth to pups; the number of pups in the fertile Snf5 CKO females was significantly lower than that in control mice (7.8 ± 1.1 (Control) vs 4.9 ± 2.0 (CKO), respectively, P < 0.001 by Student’s t-test; Table S1A).