6ANE:
reference: Active Site Flexibility as a Hallmark for Efficient PET Degradation by I. sakaiensis PETase., Fecker T, Galaz-Davison P, Engelberger F, Narui Y, Sotomayor M, Parra LP, Ramirez-Sarmiento CA, Biophys J. 2018 Mar 27;114(6):1302-1312. doi: 10.1016/j.bpj.2018.02.005. PMID: 29590588

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