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Comprehensive Annotations of Human Herpesvirus 6A and 6B Genomes Reveals Novel and Conserved Genomic Features

ABSTRACT: Comprehensive Annotations of Human Herpesvirus 6A and 6B Genomes Reveals Novel and Conserved Genomic Features

PROVIDER: PRJNA558563 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9900710.fastq.gz	Fastqsanger.gz
	SRR9900720.fastq.gz	Fastqsanger.gz
	SRR9900711.fastq.gz	Fastqsanger.gz
	SRR9900721.fastq.gz	Fastqsanger.gz
	SRR9900712.fastq.gz	Fastqsanger.gz

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Comprehensive Annotations of Human Herpesvirus 6A and 6B Genomes Reveals Novel and Conserved Genomic Features

Project description:Human herpesvirus 6 (HHV-6) A and B are highly ubiquitous betaherpesviruses, infecting the majority of the human population. Like other herpesviruses, our understanding of their protein coding potential is far from complete. Here we use ribosome profiling and RNA-seq to experimentally define the HHV-6 translation products and to follow their temporal expression. We identified hundreds of new open reading frames (ORF)s, including many upstream ORFs (uORF)s and internal ORFs (iORF)s, generating a complete atlas of HHV-6 translation products. Integrating data from human cytomegalovirus we uncover numerous uORFs and iORFs that are conserved between beta herpesviruses and we show uORFs are specifically enriched in late viral genes. We also identified three highly abundant viral long non coding RNAs (lncRNA)s and we show one of these lncRNAs generate a non-polyadenylated stable intron that is conserved between all sequenced beta herpesviruses. Overall, this work uncovers the full complexity of the HHV-6 family genomes and highlights novel features that are conserved between beta herpesviruses, providing a resource for future functional studies.

2019-08-13 | GSE135363 | GEO

Comprehensive annotations of human herpesvirus 6A and 6B genomes reveal novel and conserved genomic features.

Project description:Human herpesvirus-6 (HHV-6) A and B are ubiquitous betaherpesviruses, infecting the majority of the human population. They encompass large genomes and our understanding of their protein coding potential is far from complete. Here, we employ ribosome-profiling and systematic transcript-analysis to experimentally define HHV-6 translation products. We identify hundreds of new open reading frames (ORFs), including upstream ORFs (uORFs) and internal ORFs (iORFs), generating a complete unbiased atlas of HHV-6 proteome. By integrating systematic data from the prototypic betaherpesvirus, human cytomegalovirus, we uncover numerous uORFs and iORFs conserved across betaherpesviruses and we show uORFs are enriched in late viral genes. We identified three highly abundant HHV-6 encoded long non-coding RNAs, one of which generates a non-polyadenylated stable intron appearing to be a conserved feature of betaherpesviruses. Overall, our work reveals the complexity of HHV-6 genomes and highlights novel features conserved between betaherpesviruses, providing a rich resource for future functional studies.

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Human Herpesvirus 6A encoded miRNAs: A role in viral lytic replication

Project description:We report the application of size selection of small RNA species isolated from Jjhan cells harboring the human herpesvirus 6A genome. We ammassed >3.4million reads of sequence from three different sources: Normal Brain cell total RNA, Jjhan total RNA and HHV-6A BAC transfected Jjhan total RNA. Sequences were mapped to the HHV-6A Uganda 1102 strain genome (GenBank: X83413.1) with no less than 100% match for reads >20nt and <23nt. The resulting pool of candidates was mapped to the HHV-6A genome. Single pass 36nt sequencing of samples either with or without HHV-6a genomes present.

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Project description:Limited understanding of the immunopathogenesis of human herpesvirus 6B (HHV-6B) has prevented its acceptance as a pulmonary pathogen after hematopoietic cell transplantation (HCT). We conducted a prospective multicenter study of patients undergoing bronchoalveolar lavage (BAL) for pneumonia after allogeneic HCT. We tested blood and BAL fluid (BALF) for HHV-6B DNA and mRNA transcripts associated with lytic infection and performed RNA-seq on paired blood. Among 116 participants, HHV-6B DNA was detected in 37% of BALs, 49% of which had HHV-6B mRNA detection. We established an HHV-6B DNA threshold (≥2.3 log10copies/ml in BALF) that was highly predictive of HHV-6B mRNA detection and increased risk for death from respiratory failure (adjusted HR, 2.35; 95% CI, 1.08-5.11). Participants with HHV-6B DNA in BALF exhibited distinct host gene expression signatures, notable for enriched interferon signaling pathways in participants clinically diagnosed with idiopathic pneumonia. These data implicate HHV-6B as a pulmonary pathogen after allogeneic HCT.

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Small RNA deep-sequencing identifies microRNAs and other small non-coding RNAs from human herpesvirus 6 (HHV-6B)

2012-01-01 | GSE34196 | GEO

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Human betaherpesvirus 6B strain:Z29

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Protemics of human cell during HHV-6A reactivation

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