COL4A3 and glomerular disorder: Specific deletion of Col4a3 in podocytes (Pod-Crepos; Col4a3L/L) presented with a phenotype similar to the ubiquitous deletion of Col4a3 (CMV-Crepos; Col4a3L/L), with a median survival of 30 wk (Figs 1D and S2A), significant proteinuria (Fig 1E), and histopathological findings associated with glomerular disease (Figs 1G and S2B).