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A Comprehensive RNA-seq Analysis of Human Bocavirus 1 Transcripts in Infected Human Airway Epithelium
Journal article   Open access   Peer reviewed

A Comprehensive RNA-seq Analysis of Human Bocavirus 1 Transcripts in Infected Human Airway Epithelium

Wei Zou, Min Xiong, Xuefeng Deng, John F Engelhardt, Ziying Yan and Jianming Qiu
Viruses, Vol.11(1), p.33
01/07/2019
DOI: 10.3390/v11010033
PMCID: PMC6357044
PMID: 30621044
url
https://doi.org/10.3390/v11010033View
Published (Version of record) Open Access

Abstract

Human bocavirus 1 (HBoV1) infects well-differentiated (polarized) human airway epithelium (HAE) cultured at an air-liquid interface (ALI). In the present study, we applied next-generation RNA sequencing to investigate the genome-wide transcription profile of HBoV1, including viral mRNA and small RNA transcripts, in HBoV1-infected HAE cells. We identified novel transcription start and termination sites and confirmed the previously identified splicing events. Importantly, an additional proximal polyadenylation site (pA)p2 and a new distal polyadenylation site (pA)d lying on the right-hand hairpin (REH) of the HBoV1 genome were identified in processing viral pre-mRNA. Of note, all viral nonstructural proteins-encoding mRNA transcripts use both the proximal polyadenylation sites [(pA)p1 and (pA)p2] and distal polyadenylation sites [(pA)d1 and (pA)d ] for termination. However, capsid proteins-encoding transcripts only use the distal polyadenylation sites. While the (pA)p1 and (pA)p2 sites were utilized at roughly equal efficiency for proximal polyadenylation of HBoV1 mRNA transcripts, the (pA)d1 site was more preferred for distal polyadenylation. Additionally, small RNA-seq analysis confirmed there is only one viral noncoding RNA (BocaSR) transcribed from nt 5199⁻5340 of the HBoV1 genome. Thus, our study provides a systematic and unbiased transcription profile, including both mRNA and small RNA transcripts, of HBoV1 in HBoV1-infected HAE-ALI cultures.
Cell Line Genome, Viral Bronchi - virology Alternative Splicing Humans RNA, Messenger - genetics Cells, Cultured Viral Nonstructural Proteins - genetics Gene Expression Profiling Human bocavirus - genetics RNA, Viral - genetics Sequence Analysis, RNA Virus Replication Gene Expression Regulation, Viral Epithelial Cells - virology Polyadenylation Bronchi - cytology Capsid Proteins - genetics

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