4AP5:
reference: Structure of human POFUT2: insights into thrombospondin type 1 repeat fold and O-fucosylation., Chen CI, Keusch JJ, Klein D, Hess D, Hofsteenge J, Gut H, EMBO J. 2012 May 15. doi: 10.1038/emboj.2012.143. PMID: 22588082

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