4ZWE:
reference: Impaired dNTPase Activity of SAMHD1 by Phosphomimetic Mutation of T592., Tang C, Ji X, Wu L, Xiong Y, J Biol Chem. 2015 Aug 20. pii: jbc.M115.677435. PMID: 26294762

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).