2B3P:
reference: Engineering and characterization of a superfolder green fluorescent protein., Pedelacq JD, Cabantous S, Tran T, Terwilliger TC, Waldo GS, Nat Biotechnol. 2006 Jan;24(1):79-88. Epub 2005 Dec 20. PMID: 16369541

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