2H2P:
reference: Uncoupling of a CLC Cl(-)/H(+) Exchange Transporter by Polyatomic Anions., Nguitragool W, Miller C, J Mol Biol. 2006 Sep 29;362(4):682-90. Epub 2006 Aug 14. PMID: 16905147

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