5WDZ:
reference: Structure of monomeric Interleukin-8 and its interactions with the N-terminal Binding Site-I of CXCR1 by solution NMR spectroscopy., Berkamp S, Park SH, De Angelis AA, Marassi FM, Opella SJ, J Biomol NMR. 2017 Nov 15. pii: 10.1007/s10858-017-0128-3. doi:, 10.1007/s10858-017-0128-3. PMID: 29143165

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