1MCP:
reference: Phosphocholine binding immunoglobulin Fab McPC603. An X-ray diffraction study at 2.7 A., Satow Y, Cohen GH, Padlan EA, Davies DR, J Mol Biol 1986 Aug 20;190(4):593-604. PMID: 3097327

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