J. biol. chem. J. biol. chem. Bone Overgrowth-associated Mutations in the LRP4 Gene Impair Sclerostin Facilitator Function Leupin Olivier Piters Elke Halleux Christine Hu Shouih Kramer Ina Morvan Frederic Bouwmeester Tewis Schirle Markus Bueno-Lozano Manuel Universidad de Zaragoza Ramos Feliciano Universidad de Zaragoza Itin Peter Boudin Eveline Freitas Fenna Jennes Karen Brannetti Barbara Charara Nadine Ebersbach Hilmar Geisse Sabine Lu Chris Kneissel Michaela 2011 research-article