1TAP:
reference: NMR solution structure of the recombinant tick anticoagulant protein (rTAP), a factor Xa inhibitor from the tick Ornithodoros moubata., Antuch W, Guntert P, Billeter M, Hawthorne T, Grossenbacher H, Wuthrich K, FEBS Lett 1994 Sep 26;352(2):251-7. PMID: 7925983

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