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. 2015 Dec 14;5:18064. doi: 10.1038/srep18064

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Domains—bHLH (Blue), PAS-A (Red), PAS-B (Green) and PAC (Purple)—are boxed. Bm, Bombyx mori (ACJ04052.1); Dpun, Diploptera punctata (AIM47235.1); Nl, Nilaparvata lugens (AIE12451.1); Tc, Tribolium castaneum (NP_001092812.1).