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 |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:171 |
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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 |
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Beteiligte Personen: |
Davies, Emma Ann [VerfasserIn] |
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Links: |
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Themen: |
63231-63-0 |
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Anmerkungen: |
Date Completed 18.03.2024 Date Revised 02.04.2024 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.jcv.2024.105640 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM367102285 |
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245 | 1 | 0 | |a Evaluation of a custom designed hybridisation assay for whole genome sequencing of human adenoviruses direct from clinical samples |
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500 | |a published: Print-Electronic | ||
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520 | |a Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved. | ||
520 | |a 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 | ||
520 | |a 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 | ||
520 | |a 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 | ||
520 | |a 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 | ||
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650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 4 | |a Adenovirus | |
650 | 4 | |a Hybrid capture, Agilent, SureSelect | |
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