Angew. Chem. (Int. ed.) Angew. Chem. (Int. ed.) A Native Ternary Complex Trapped in a Crystal Reveals the Catalytic Mechanism of a Retaining Glycosyltransferase Albesa-Jové D. Mendoza F. Rodrigo-Unzueta A. Gomollón-Bel F. Cifuente J. O. Urresti S. Comino N. Gõmez H. Romero-García J. Lluch J. M. Sancho-Vaello E. Biarnés X. Planas A. Merino P. Universidad de Zaragoza Masgrau L. Guerin M. E. 2015 research-article