SV40 (simian virus 40) Tag sequences were compared to the Tags of the following polyomaviruses: BKV (BKPyV, BK polyomavirus), HPyV6 (human polyomavirus 6), HPyV7 (human polyomavirus 7), HPyV9 (human polyomavirus 9), HPyV10 (human polyomavirus 10), HPyV11/STLPyV (human polyomavirus 11), HPyV12 (human polyomavirus 12), JCV (JCPyV, JC polyomavirus), KIV (KIPyV, KI polyomavirus), LPV/AGMPyV (B-lymphotropic polyomavirus), MCV (MCPyV, Merkel cell polyomavirus), SA12 (simian agent virus 12), TSV (TSPyV, Trichodysplasia spinulosa-associated polyomavirus), WUV (WUPyV, WU polyomavirus), and NJPyV (New Jersey polyomavirus, not shown). (http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=10624).