1B94:
reference: Structural analysis of a mutational hot-spot in the EcoRV restriction endonuclease: a catalytic role for a main chain carbonyl group., Thomas MP, Brady RL, Halford SE, Sessions RB, Baldwin GS, Nucleic Acids Res 1999 Sep 1;27(17):3438-45. PMID: 10446231

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