3M1V:
reference: Structural insight into methyl-coenzyme M reductase chemistry using coenzyme B analogues ., Cedervall PE, Dey M, Pearson AR, Ragsdale SW, Wilmot CM, Biochemistry. 2010 Sep 7;49(35):7683-93. PMID: 20707311

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