1MYF:
reference: Solution structure of carbonmonoxy myoglobin determined from nuclear magnetic resonance distance and chemical shift constraints., Osapay K, Theriault Y, Wright PE, Case DA, J Mol Biol 1994 Nov 25;244(2):183-97. PMID: 7966330

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