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DRAGEN Array Genotyping Cloud v1.0.0 Release Notes

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RELEASE DATE

March 2024

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RELEASE HIGHLIGHTS

  • Ability to genotype and produce related reports for human and non-human arrays in the cloud.

  • Configureable interfaces in Basespace that allows for flexibility and easy kick off.

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NEW FEATURES IN DETAIL

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KNOWN ISSUES

  • Some multi-nucleotide variant (MNV) designs reverse compliment the "Allele1/2 Top" fields in the Final Report

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KNOWN LIMITATIONS

  • Genotyping only works on diploid organisms at this time. Polyploid genotyping is not currently supported.

DRAGEN Array Methylation QC Cloud v1.0.0 Release Notes

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RELEASE DATE

May 2024

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RELEASE HIGHLIGHTS

  • Adjustable thresholds to determine pass/fail status

  • Data summary plots for a quick visual check of each analysis batch

  • Determining detection p-value, beta-values, and m-values from each methylation sample

  • Deployment on BaseSpace™ Sequence Hub user interface for easy analysis kickoff

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    NEW FEATURES IN DETAIL

    • Adjustable thresholds for 21 built in controls, p-value detection, proportion probes passing, and offset correction within BaseSpace Sequence Hub to customize for user’s study needs

      • Thresholds are used to assign pass (1) or fail (0) status to each sample

        • Failed metrics can be highlighted for easy viewing

      • Pinpoint areas of failure including bisulfite conversion, staining, hybridization, etc. to identify assay steps in need of troubleshooting

      • Quantitative values for each control removing ambiguity with manual interpretation

    • Data summary plots with information on passing p-value detection and principal component analysis of beta values

    • Provides detection p-value, beta-values and m-values for each CG site per sample to use in downstream analysis

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    KNOWN ISSUES

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    KNOWN LIMITATIONS

    • Standard thresholds may not be applicable for all discontinued, semi-custom or custom BeadChips and IDATs originating from NextSeq550

    • Built-in controls may not be available on all discontinued, semi-custom or custom BeadChips

    SNV VCF File
    Final Report
    Locus Summary

    DRAGEN Array v1.0.0 Release Notes

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    RELEASE DATE

    December 2023

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    RELEASE HIGHLIGHTS

    • Improved star allele calling accuracy for Global Diversity Array with enhanced PGx (GDA-ePGx) BeadChips.

    • Reports star allele calls with quality scores for greater transparency and confidence.

    • Provides missing variant reporting to improve data quality.

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    NEW FEATURES IN DETAIL

    • Star Allele Calling

      • Star allele calling for genes listed in

        • For in-silico datasets, call rate ≥99%, diplotyping accuracy ≥ 90%

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    KNOWN ISSUES

    • Corrupt or invalid GTC files will abort with an error instead of skipping. The corrupt or invalid GTC files will need to be removed before proceeding.

    • In the gtc-to-vcf subcommand a mismatch between BPM and CSV manifests will not cause the command to abort with an error. The mismatch will need to be addressed before proceeding.

    • For gtc-to-vcf, multi-allelic variants designed with multiple assays might not always collapse into one variant correctly and be reported as two separate variants instead. Some indel variants are missing from SNV VCF due to mapping issue between the designed indels and the reference genome.

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    KNOWN LIMITATIONS

    • PGx CNV calling and star allele calling and annotation were only validated and intended to be used with GDA_PGx_E2 product files.

    • Using subcommands “unsquash-duplicates” and “filter loci” during gtc-to-vcf conversion should not be used when star allele calling is desired.

    • Only CPIC guidelines are available for star allele annotation (metabolizer status calling) for the cloud offering. For local, CPIC and DPWG are available.

    Includes reporting of the hybrid star alleles and allelic specific copy number

  • Provides quality score that estimates confidence in the star allele call as an additional quality metric

  • Star allele call rate increased through more robust error tolerance and missing data tolerance

    • Supporting variants and missing variants are listed and can be further reviewed

    • Quality score indicates confidence in result considering the missing data

  • Reports alternative ranked PGx star allele solutions

    • Allows an alternative to be investigated which may be desirable for samples with low confidence calls

    • Provides quality score (negative log likelihood) for alternative solutions

  • Function annotations for PGx genes listed in section PGx Allele Definitions and PGx Guidelines

    • Metabolizer and function annotations are supported for two sets of guidelines from CPIC and DPWG respectively

    • Activity scores are provided for CYP2C9, CYP2D6, and DPYD

  • CNV VCF

    • CNV coverage for genes listed in PGx CNVs Coverage

    • Compressed and indexed files for size reduction and faster reading

    • Updated VCF header description to indicate copy number of 5 may be reported by the software

    • Revised filter field delimiter to comply with VCF 4.3 specification which allows VCF parsing software to parse the file successfully

  • Genotyping VCF

    • Compressed and indexed files for size reduction and faster reading

  • Manifest names greater than 80 characters will cause failure when converting IDATs to GTCs.

  • Symbolic links for VCFs are not supported as the inputs to the “star-allele call” subcommand.

  • The local Linux CLI and Cloud offering do not sort the star_alleles.csv and various fields in the metabolizer_status.json. The local Windows CLI does.

  • PGx Star Allele Coverage