1QE6: Interleukin-8 With An Added Disulfide Between Residues 5 And 33 (L5ch33c)
reference: Receptor-binding conformation of the "ELR" motif of IL-8: X-ray structure of the L5C/H33C variant at 2.35 A resolution., Gerber N, Lowman H, Artis DR, Eigenbrot C, Proteins 2000 Mar 1;38(4):361-7. PMID: 10707023

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