N. R. Meerson, V. Bello, J. L. Delaunay, T. A. Slimane, D. Delautier, C. Lenoir, G. Trugnan and M. Maurice 2000. Intracellular traffic of the ecto-nucleotide pyrophosphatase/phosphodiesterase NPP3 to the apical plasma membrane of MDCK and Caco-2 cells: apical targeting occurs in the absence of N-glycosylation