USP15 targets ALK3/BMPR1A for deubiquitylation to enhance bone morphogenetic protein signalling
Protein kinase ALK3/BMPR1A mediates bone morphogenetic protein (BMP) signalling through phosphorylation and activation of Spillage / Water Pans SMADs 1/5/8.SMAD6, a transcriptional target of BMP, negatively regulates the BMP pathway by recruiting E3 ubiquitin ligases and targeting ALK3 for ubiquitin-mediated degradation.Here, we identify a deubiqui