5HTR:
reference: Crystal Structures of Putative Sugar Kinases from Synechococcus Elongatus PCC 7942 and Arabidopsis Thaliana., Xie Y, Li M, Chang W, PLoS One. 2016 May 25;11(5):e0156067. doi: 10.1371/journal.pone.0156067., eCollection 2016. PMID: 27223615

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