6FN0:
reference: Structure of the bifunctional cryptochrome aCRY from Chlamydomonas reinhardtii., Franz S, Ignatz E, Wenzel S, Zielosko H, Putu EPGN, Maestre-Reyna M, Tsai MD, Yamamoto J, Mittag M, Essen LO, Nucleic Acids Res. 2018 Jul 19. pii: 5055825. doi: 10.1093/nar/gky621. PMID: 30032195

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