5UE8:
reference: Mechanistic Insights into Neurotransmitter Release and Presynaptic Plasticity from the Crystal Structure of Munc13-1 C1C2BMUN., Xu J, Camacho M, Xu Y, Esser V, Liu X, Trimbuch T, Pan YZ, Ma C, Tomchick DR, Rosenmund C, Rizo J, Elife. 2017 Feb 8;6. pii: e22567. doi: 10.7554/eLife.22567. PMID: 28177287

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