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. 2015 Nov 18;5:16724. doi: 10.1038/srep16724

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Phylogenetic tree constructed using MEGA 5.0 using the N-J method with JTT model, 1000 bootstraps. ABCB NBDs were used to as the outgroup. Green, NBDs from half structure ABCD transporters; Red, N-terminal NBDs from the ABCD full structure transporters; Blue, C-terminal NBDs from the ABCD full structure transporters; Gray, ABCB NBDs.