Fig. 6From: Mitochondrial genomic analyses provide new insights into the “missing” atp8 and adaptive evolution of MytilidaeThe structure analysis of nad4 (a) The topology diagram of nad4 of Limnoperna fortunei. In transparent blue, representation of N-terminal part not similar with Escherichia Coli. The positions of positive sites were indicated in red. b The structure analysis of positive sites. Upper-right side: L. fortunei model; Lower-right side: Mytilus edulis model. The positions of positive sites were indicated in red, and the amino acid in close proximity was indicated in yellowBack to article page