| 4B56: reference: Structure of NPP1, an Ectonucleotide Pyrophosphatase/Phosphodiesterase Involved in Tissue Calcification., Jansen S, Perrakis A, Ulens C, Winkler C, Andries M, Joosten RP, Van Acker M, Luyten FP, Moolenaar WH, Bollen M, Structure. 2012 Oct 2. pii: S0969-2126(12)00330-9. doi:, 10.1016/j.str.2012.09.001. PMID: 23041369 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).