Genotyping schemes for polyomavirus BK, using gene-specific phylogenetic trees and single nucleotide polymorphism analysis.

ABSTRACT: BK virus (BKV) genotyping has been historically based on nucleotides 1744 to 1812 in the VP1 gene. We reevaluated this practice by making BKV whole-genome and gene-specific phylogenetic trees as well as performing single nucleotide polymorphism (SNP) analysis of 162 sequences available in the public domain. It was found that currently known BKV subtypes and subgroups can no longer be reliably determined by sequencing certain partial gene sequences. Phylogenetic trees based on large T-antigen (LTA) allow separation of subtype I into subgroups Ia, Ib1, Ib2, and Ic, with bootstrap values of 100%, which are better than bootstraps obtained using VP1 sequences (bootstrap values of 71 to 97%). Subtype IV can be subdivided into subgroups, but LTA bootstrap values (33 to 80%) are lower than those o

SUBMITTER: Luo C 

PROVIDER: S-EPMC2643714 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature