3LVV:
reference: Structural basis for feedback and pharmacological inhibition of Saccharomyces cerevisiae glutamate cysteine ligase., Biterova EI, Barycki JJ, J Biol Chem. 2010 May 7;285(19):14459-66. Epub 2010 Mar 10. PMID: 20220146

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