protein ectonucleotide pyrophosphatase/phosphodiesterase family member 3 CD203c ENPP3 Category=gene. Requested by=CL. phosphodiesterase I/nucleotide pyrophosphatase 3 protein PR:000001344 phosphodiesterase I beta ectonucleotide pyrophosphatase/phosphodiesterase 3 PD-Ibeta PDNP3 E-NPP 3 A protein that is a translation product of the human ENPP3 gene or a 1:1 ortholog thereof. dinucleoside polyphosphatase