PMID: 25764610Mar 15, 2015Paper

Complete genome characterization and phylogenetic analysis of WU polyomavirus in Thai pediatric patients with respiratory tract infections in 2013

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
Prangwalai ChanchaemSunchai Payungporn

Abstract

The WU polyomavirus (WUPyV) is a small DNA virus (family Polyomaviridae) that contains a circular double-stranded DNA genome, approximately 5 kb in length. WUPyV was first discovered in the respiratory tract of children with acute respiratory symptoms. This study focuses on the complete genome characterization and phylogenetic analysis of WUPyV obtained from Thai patients with respiratory diseases in 2013. DNA was extracted from nasopharyngeal (NP) suction specimens (n = 614) from patients with respiratory tract infections. WUPyV was detected by using semi-nested PCR and then characterized by whole genome sequencing. The nucleotides and deduced amino acid sequences were analyzed by multiple sequences alignment and phylogenetic tree. Analysis revealed that 0.16% (1/614) of the sample was positive for WUPyV. Phylogenetic trees demonstrated that WUPyV(isolate CU_Chonburi 3) was closely related to previously described WUPyV. Moreover, whole genome sequences alignment of WUPyV showed several nucleotide variations within non-coding regions and amino acid changes in VP1 (position S347T); VP2 (positions L40V, G120R, Y121I, P123R, G127S, L137F, Q287R, and A327V); LTAg (positions Q357P, V369E, E377K, D378V, A381T, R382E, R383G, and D389G...Continue Reading

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