1B5L:
reference: Crystal structure of ovine interferon-tau at 2.1 A resolution., Radhakrishnan R, Walter LJ, Subramaniam PS, Johnson HM, Walter MR, J Mol Biol 1999 Feb 12;286(1):151-62. PMID: 9931256

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