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A) phylogenetic analysis of 17 known polyomaviruses [45]: B) Crystal structure of VP1 monomer derived from pdb id 3BWQ. PyMOL [46] was used to illustrate the surface variable loop regions C) amino acid primary sequence alignments of VP1 variable loop regions for SV40 and BKV, LPV and MCV, and KIV and WUV.
