4FC1:
reference: Direct observation of hydrogen atom dynamics and interactions by ultrahigh resolution neutron protein crystallography., Chen JC, Hanson BL, Fisher SZ, Langan P, Kovalevsky AY, Proc Natl Acad Sci U S A. 2012 Sep 4. PMID: 22949690

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