Friedhelm Hildebrandt and colleagues identify mutations in NUP93, NUP205 or XPO5 in patients with steroid-resistant nephrotic syndrome. They show that NUP93 and XPO5 interact with SMAD4 and that NUP93 mutations interfere with BMP7-SMAD4 signaling in podocytes.
- Daniela A Braun
- Carolin E Sadowski
- Friedhelm Hildebrandt
