5REQ:
reference: Stabilization of radical intermediates by an active-site tyrosine residue in methylmalonyl-CoA mutase., Thoma NH, Meier TW, Evans PR, Leadlay PF, Biochemistry 1998 Oct 13;37(41):14386-93. PMID: 9772164

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