ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads

Viral sequence data from clinical samples frequently contain human contamination, which must be removed prior to sharing for legal and ethical reasons. To enable host read removal for SARS-CoV-2 sequencing data on low-specification laptops, we developed ReadItAndKeep, a fast lightweight tool for Ill...

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Main Authors: Hunt, M, Swann, J, Constantinides, B, Fowler, PW, Iqbal, Z
Format: Internet publication
Language:English
Published: bioRxiv 2022
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author Hunt, M
Swann, J
Constantinides, B
Fowler, PW
Iqbal, Z
author_facet Hunt, M
Swann, J
Constantinides, B
Fowler, PW
Iqbal, Z
author_sort Hunt, M
collection OXFORD
description Viral sequence data from clinical samples frequently contain human contamination, which must be removed prior to sharing for legal and ethical reasons. To enable host read removal for SARS-CoV-2 sequencing data on low-specification laptops, we developed ReadItAndKeep, a fast lightweight tool for Illumina and nanopore data that only keeps reads matching the SARS-CoV-2 genome. Peak RAM usage is typically below 10MB, and runtime less than one minute. We show that by excluding the polyA tail from the viral reference, ReadItAndKeep prevents bleed-through of human reads, whereas mapping to the human genome lets some reads escape. We believe our test approach (including all possible reads from the human genome, human samples from each of the 26 populations in the 1000 genomes data, and a diverse set of SARS-CoV-2 genomes) will also be useful for others.
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spelling oxford-uuid:6d648524-1fd7-420f-8112-58b7e8e51f902022-05-13T14:12:05ZReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing readsInternet publicationhttp://purl.org/coar/resource_type/c_7ad9uuid:6d648524-1fd7-420f-8112-58b7e8e51f90EnglishSymplectic ElementsbioRxiv2022Hunt, MSwann, JConstantinides, BFowler, PWIqbal, ZViral sequence data from clinical samples frequently contain human contamination, which must be removed prior to sharing for legal and ethical reasons. To enable host read removal for SARS-CoV-2 sequencing data on low-specification laptops, we developed ReadItAndKeep, a fast lightweight tool for Illumina and nanopore data that only keeps reads matching the SARS-CoV-2 genome. Peak RAM usage is typically below 10MB, and runtime less than one minute. We show that by excluding the polyA tail from the viral reference, ReadItAndKeep prevents bleed-through of human reads, whereas mapping to the human genome lets some reads escape. We believe our test approach (including all possible reads from the human genome, human samples from each of the 26 populations in the 1000 genomes data, and a diverse set of SARS-CoV-2 genomes) will also be useful for others.
spellingShingle Hunt, M
Swann, J
Constantinides, B
Fowler, PW
Iqbal, Z
ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title_full ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title_fullStr ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title_full_unstemmed ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title_short ReadItAndKeep: rapid decontamination of SARS-CoV-2 sequencing reads
title_sort readitandkeep rapid decontamination of sars cov 2 sequencing reads
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AT fowlerpw readitandkeeprapiddecontaminationofsarscov2sequencingreads
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