1BMP:
reference: Three-dimensional structure of recombinant human osteogenic protein 1: structural paradigm for the transforming growth factor beta superfamily., Griffith DL, Keck PC, Sampath TK, Rueger DC, Carlson WD, Proc Natl Acad Sci U S A 1996 Jan 23;93(2):878-83. PMID: 8570652

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