Evaluation of a custom designed hybridisation assay for whole genome sequencing of human adenoviruses direct from clinical samples

Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved..

BACKGROUND: Human Adenoviruses are a common cause of disease and can cause significant morbidity and mortality in immunocompromised patients. Nosocomial transmission events can occur with whole genome sequencing playing a crucial role. This study evaluates the performance of a custom designed SureSelectXT target enrichment assay based on 14 adenovirus genomes for sequencing direct from clinical samples.

METHODS: Modifications were made to the SureSelectXT low input protocol to enhance performance for viral targets. Consensus sequences were generated using an in-house designed three stage bioinformatics pipeline. We assessed, percentage of on target reads, average depth of coverage and percentage genome coverage to determine assay performance across a range of sample matrices.

RESULTS: Whole genome sequences were successfully generated for 91.6 % of samples assessed. Adenovirus DNA concentration was a good indicator of enrichment success. Highly specific enrichment was observed with only 6 % of samples showing < 50 % on target reads. Respiratory and faecal samples performed well where bloods showed higher levels of non-specific enrichment likely confounded by low adenovirus DNA concentrations. Protocol performance did not appear impacted by Adenovirus type or species.

CONCLUSION: Overall performance of this modified SureSelectXT protocol appears in line with previously published works although there are some confounding factors requiring further investigation. The use of a small RNA bait set has the potential to reduce associated costs which can be prohibitive.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:171

Enthalten in:

Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology - 171(2024) vom: 15. Apr., Seite 105640

Sprache:

Englisch

Beteiligte Personen:

Davies, Emma Ann [VerfasserIn]
Dutton, Laura [VerfasserIn]
Guiver, Malcolm [VerfasserIn]

Links:

Volltext

Themen:

63231-63-0
9007-49-2
Adenovirus
DNA
Hybrid capture, Agilent, SureSelect
Journal Article
RNA
Research Support, Non-U.S. Gov't
Targeted enrichment
Whole genome sequencing

Anmerkungen:

Date Completed 18.03.2024

Date Revised 02.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jcv.2024.105640

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367102285