Fig. 4.

The bimodal PTV-QFVH motif in HipHop and K81 proteins. An alignment of the Fig. 2I C segment (Fig. 2I) of HipHops from sequenced Drosophila species is shown at the top, with identical residues marked by asterisks underneath. The PTV and QFVH motifs are shaded gray. Species with K81 are labeled with a vertical line to the left. An alignment of the C segment of K81s from the sequenced melanogaster subgroup is shown in the middle, with melanogaster HipHop included at the top. At the bottom, the status of the PTV/QFVH motif is indicated for each species in reference to their evolutionary relationship and the status of the k81 duplication. –, the absence of k81.