Fig. 4

Distribution of protein domains, TMs and conserved motifs in VrOSCA proteins. Grey lines represent amino acid sequences. a Schematic diagram of functional domains and TMs. The black rectangles indicate the TMs and the colored rectangles represent the protein domains. b Schematic diagrams of all motifs in VrOSCA proteins. Different motifs are annotated by boxes of different colors and numbered 1–20. The regular expression sequence of each motif is listed in Additional file 5