4OQO:
reference: Structure of the iron-free true C-terminal half of bovine lactoferrin produced by tryptic digestion and its functional significance in the gut., Rastogi N, Singh A, Pandey SN, Sinha M, Bhushan A, Kaur P, Sharma S, Singh TP, FEBS J. 2014 Jun;281(12):2871-82. doi: 10.1111/febs.12827. Epub 2014 May 16. PMID: 24798798

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