4ZFS:
reference: Crystal Structure of Phototoxic Orange Fluorescent Proteins with a Tryptophan-Based Chromophore., Pletneva NV, Pletnev VZ, Sarkisyan KS, Gorbachev DA, Egorov ES, Mishin AS, Lukyanov KA, Dauter Z, Pletnev S, PLoS One. 2015 Dec 23;10(12):e0145740. doi: 10.1371/journal.pone.0145740., eCollection 2015. PMID: 26699366

This OCA Structure page
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