Search results for “annotation”

Merging VCFs in an Imperfect World

Sep 7, 2021

Merging variant records, VCFs, across samples is important when performing trio analysis or family analysis as it ensures that hereditary relationships can be properly inferred. There are many ways to represent a single variant. Insertions and deletions may be right or left aligned, prefixes and suffixes can be added, and…

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Manage gene lists across projects with VarSeq and VSClinical

Aug 18, 2021

Clinical labs often maintain gene panels, which are lists of genes with evidence of disease association. These panels are used to prioritize variants and limit interpretations to a predefined set of test-specific genes. In general, gene panels should be stored independently of any specific project or interpretation, as it is…

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Customer Publications in July 2021

Jul 29, 2021

In the July 2021 Customer Publication blog, I will highlight four studies that provided further insights into conditions that are typically identified in early childhood. As you will see as you read the summaries of each publication, both Golden Helix software platforms (VarSeq and SNP & Variation Suite or SVS…

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Leveraging expert-curated variant interpretations using VSClinical

Jul 27, 2021

This blog post will cover an exciting new VSClinical feature in the upcoming VarSeq release. The ACMG Previously Interpreted Variants feature allows users to integrate databases of expert-curated variant interpretations into their VSClinical workflows. These data sources store variant-level interpretation data, including the classification, associated disorders, interpretation text, and scored…

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Selecting Clinically Relevant Transcripts in VarSeq

Jun 28, 2021

One of the many tricks of encoding so much functionality into so little space in eukaryotic genomes is the ability to produce multiple distinct mRNAs (transcripts) from a single gene. While one transcript is often the dominant one for a given tissue or cell type, there are, of course, exceptions…

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Golden Helix’s Next-Gen Sequencing Data Analysis Solutions Explained

Jun 22, 2021

Next-gen sequencing (NGS) comprises many sophisticated steps that are often compressed into three major sections: library prep, sequencing, and data analysis. Understanding each stage of NGS data analysis is essential for building efficient clinical workflows. Obviously, the goal is to simplify each of these steps, but more often than not,…

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VSPipeline Best Practices

Jun 17, 2021

VSPipeline is becoming a very popular tool among VarSeq users as it is essential for creating repeatable clinical workflows that can be executed in automated fashion, supporting everything from variant filtering to clinical reporting. Since VSPipeline is a command-line tool, I think it would be helpful to discuss some of the best practices along with helpful tips for getting the most out of VSPipeline.   Some of you may be less familiar with VSPipeline, so…

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Harmonizing Next-Generation Sequencing Data: VarSeq Liftover Tool

Jun 15, 2021

One of the inherent realities of next-generation sequencing is the ongoing updates to the human reference genome—one of the strongest recommendations to take the original sequencing data and remap to the latest genome assembly. However, there are several reasons why remapping may be impractical. So, an alternative solution is needed…

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A Simple Guide to Curating Genome Assemblies

Jun 8, 2021

A common feature request from Golden Helix customers is to curate and make available genome assemblies for different plant and animal species. These requests commonly come from SVS users as many research projects are being carried out, and having the genome assembly available for analysis is essential. That being said,…

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VS-CNV Updates in VarSeq v2.2.3

May 18, 2021

Golden Helix has just released VarSeq v2.2.3. In this update, there are notable changes that can improve CNV calling capabilities covered in this webcast. The topics discussed included: Accounting for GC content Improvements to CNV quality flags Using target filtering Updates to the CNV sensitivity and precision settings This blog…

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Webcast Recap: High Precision Exome CNV Detection with VS-CNV

May 7, 2021

Thank you to those who attended the recent webcast, “High Precision Exome CNV Detection with VS-CNV”. For those who could not attend but wish to watch, here is a link to the recording. This webcast delved into the complex world of CNV calling for whole-exome samples, which presents unique challenges that…

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VarSeq 2.2.3 Released!

Apr 27, 2021

I want to take this opportunity to highlight and briefly discuss some of the key features and updates that have been incorporated into VarSeq 2.2.3. Some of you may have attended the webcast that covered the prominent new features added to VarSeq, which are the updates to improve whole-exome analysis…

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Using Gene Preferences in VarSeq and VSClinical

Apr 20, 2021

With the latest release of VarSeq, we have made significant updates to our handling of the interaction of variants and genes. This includes the support for non-coding transcripts, improved splice site predictions, and updates to gene and transcript annotations. We received several questions regarding how decisions are made in the…

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VarSeq Update: Support for the Interpretation of Non-coding and Splice Site Variants

Apr 15, 2021

While VarSeq has always had excellent support for variant interpretation and analysis, we continue to find new edge cases in the clinical literature that improve our interpretation capabilities. In this blog, we will be covering some of the new improvements in VarSeq to support the interpretation of non-coding and splice…

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Webcast Recap: Exome Analysis with VS-CNV and VSClinical: Updated Strategies and Expanded Capabilities

Apr 8, 2021

Thank you to those who attended the recent webcast, “Exome Analysis with VS-CNV & VSClinical: Updated Strategies & Expanded Capabilities”. For those who could not attend but wish to watch, here is a link to the recording. In this webcast, we covered the capabilities and updates that have been incorporated…

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New Assessment Catalogs Improve Saving and Tracking Variant Interpretations

Mar 23, 2021

In this blog, we will be covering new assessment catalogs and how they work to improve saving and tracking variant interpretations. VarSeq is a variant analysis tool that effectively analyzes single nucleotide (SNVs) and copy number variants (CNVs) in both cancer and germline workflows.  Because VarSeq enables such diverse variant…

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Webcast Recap: VSWarehouse: Tracking Changing Variant Evidence and Classifications

Mar 11, 2021

Thank you to those who attended the recent webcast, “VSWarehouse: Tracking Changing Variant Evidence and Classifications”. For those who could not attend but wish to watch, here is a link to the recording. The webcast covered some general highlights of VSWarehouse value but also presented some specific capabilities covering the…

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New VSClinical ACMG Word Report Templates

Feb 18, 2021

The recent release of VarSeq 2.2.2 brings our Word report template system, previously featured in VSClinical AMP, to the VSClinical ACMG workflow. This blog post will describe how to use the Word template system using one of our shipped templates as well as how to start customizing your own templates.…

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Updates on Splice Site Analysis

Feb 2, 2021

Our latest VarSeq release is one of the largest we’ve ever had, boasting an extensive list of new features and improvements. As part of this release, we have dramatically expanded our support for splice site analysis. This includes improvements to our novel splice site algorithm and support for splice site…

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New Feature in VarSeq: Latest Sample Assessment Algorithm

Jan 26, 2021

In continuation of our blog posts focusing on new features of VarSeq v2.2.2, here we will discuss the Latest Sample Assessment algorithm for both single nucleotide variants (SNVs) and copy number variants (CNVS). This algorithm annotates the variants of the project with the latest assessment from your variant catalog, which…

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