1NFP:
reference: Structural refinement of the non-fluorescent flavoprotein from Photobacterium leiognathi at 1.60 A resolution., Moore SA, James MN, J Mol Biol 1995 May 26;249(1):195-214. PMID: 7776372

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