6AC3:
reference: Beetle luciferases with naturally red- and blue-shifted emission., Carrasco-Lopez C, Ferreira JC, Lui NM, Schramm S, Berraud-Pache R, Navizet I, Panjikar S, Naumov P, Rabeh WM, Life Sci Alliance. 2018 Aug 16;1(4):e201800072. doi: 10.26508/lsa.201800072., eCollection 2018 Aug. PMID: 30456363

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