Category Archives: How to’s and advanced workflows

Mining Curated Databases for Literature in VSClinical

         April 29, 2022

Curated databases are a real time saver when compiling published evidence to support your variant evaluations and classifications. Leveraging the curated databases at your fingertips in our VSClinical variant interpretation hub is even more efficient. Not only does VSClinical provides users with automated variant classification for germline variants according to the ACMG guidelines and somatic variants according to the AMP… Read more »

Mining VarSeq Curated Databases for Literature – Raw Data Search in Variant Table or GenomeBrowse

         April 21, 2022

An under-utilized use of VarSeq is the ability of mining raw variant data in GenomeBrowse for relevant literature. By bringing in various public and private annotation sources, GenomeBrowse allows the user to interface with raw variant data in a compressed and manageable view. This blog will show you how to leverage these sources to power up your search for variant… Read more »

VarSeq Template Design Recommendations: Single Sample Variant Filtering

         April 6, 2022

When doing next-generation sequencing (NGS) analysis in VarSeq, the fundamental goal is to develop efficient ways to filter through your NGS data. If you are just getting started with Varseq, a pre-designed project template can really come in handy for variant filtering! This blog series will cover a number of template design recommendations for variant filtering on data types ranging… Read more »

Review of VarSeq Export Options

         March 10, 2022
varseq export options

Although best known for its auto-generation of custom reports, VarSeq comes with a slew of options for exporting your data. In this blog, we will review some of the lesser-known methods for exporting your data into usable formats. These four export options can all be found under the Export tab at the upper left corner of your VarSeq interface (Figure… Read more »

Integrating Custom Gene Panels for Variant Annotations Q&A Follow Up

         February 16, 2022
Integrating Custom Gene Panels for Variant Annotations

Thanks to all those who attended the recent webcast by Dr. Rana Smalling, “Integrating Custom Gene Panels for Variant Annotations”. If you were unable to attend or would like to recap, here is a link to watch the broadcast. We covered a lot of content regarding virtual gene panels, and there were several questions submitted during our Q&A session that… Read more »

How to Create Your Own CNV Frequency Catalog

         January 20, 2022
cnv frequency catalog

Global population frequency catalogs like 1kG Phase 3, gnomAD, DGV, and others are excellent resources for identifying rare variants in your copy number variant (CNV) analysis. However, they are not exhaustive, and the reality is a lot of variants that are missing from global population frequency catalogs are still common variants. At the same time, CNVs that are identified by… Read more »

VS-CNV Command-Line CNV Tool

         December 9, 2021

If you stay current on the developments of Golden Helix features, you are aware of the substantial evolution of our copy number detection and evaluation capabilities in VarSeq. The process of CNV detection and evaluation is typically handled through the VarSeq graphic user interface. However, in some cases, users benefit from running this process via the command-line interface. Fortunately, Golden… Read more »

Top FAS Tricks You Wish You Knew When Getting Started with VSClinical

         November 18, 2021
vsclinical top things to know

As a newer member of the Golden Helix FAS Team I, like many of our customers, went through a phase of learning the ins, outs, and shortcuts of clicking around the program. In an effort to expedite new users coming up to speed, or to teach some tricks to experienced users, I’ve compiled a list of the top things I… Read more »

Validating Your CNV Workflow

         November 16, 2021
VS-CNV Blog Validation

The VarSeq CNV calling algorithm, VS-CNV, is a powerful tool for calling CNVs from the NGS coverage data stored in your BAM files. However, before this algorithm can be deployed in a clinical setting, it must be tuned and validated using data that is representative of your lab’s NGS workflow. In the past, this validation process could be difficult, as… Read more »

Efficient Gene Panel Utilization in VarSeq

         August 24, 2021

Clinical diagnostic efforts in next-generation sequencing are commonly defined at a gene panel level. The validation process of adding new genes to any diagnostic panel is ongoing, but labs typically construct and validate their clinical workflows for the current status of verified genes. This is not limited to primary finding results but can also include any incidental findings among the… Read more »

Manage gene lists across projects with VarSeq and VSClinical

         August 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 common for an individual gene panel to be generally applicable… Read more »

Easily Edit Algorithms in VarSeq Projects with a Quick Right-Click

         May 20, 2021

Thanks for checking out this blog on how to to get more out of your VarSeq projects! The best way to show off one of my favorite new features that have been incorporated into the latest VarSeq 2.2.3 release is with a scenario: You work in a lab that processes and analyzes multiple whole exome samples for copy number variations,… Read more »

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 require specific considerations and strategies. Over the past several months,… Read more »

VarSeq NGS Workflow Design: Clinical vs. Research

         April 22, 2021
NGS Clinical Research

In many cases, VarSeq users design their next-gen sequencing workflows for a clinical application. One of the major values of using VarSeq is the standardization of sample analysis via project templates for filtering down to rare variants and isolate any clinically relevant variant. However, VarSeq also doubles as a robust research application as well. There are specific algorithms that can… Read more »

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

         April 15, 2021
Splice site

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 site variants. Transcript Annotation Improvements Let’s start by covering some… Read more »

Orphanet Annotations in VarSeq

         March 18, 2021

Orphanet is a public database available in VarSeq that aims to improve the current understanding and treatment options for patients affected by rare diseases. This resource was established in France in 1997 and has gradually grown to cover a consortium of over 40 countries in Europe. The primary goal of this database is to provide a universal nomenclature to classify… Read more »

Customizing New VSClinical Report Templates

         March 9, 2021
VSClinical Word reporting

Clinical testing labs produce reports as the end product of the NGS variant detection and interpretation workflow. Necessarily, the content, detail, and presentation of the report needs to be specialized to each clinical lab, and potentially each offered test. Our last blog post introduced the new Word-based report templates in VSClinical. In this blog post, we will introduce and explore… Read more »

Implementation of ClinGen Dosage Sensitivity in VSClinical

         March 4, 2021
Clin Gen CNV

The collaboration between the Clinical Genome Resource (ClinGen) consortium and the American College of Medical Genetics (ACMG) recently developed published guidelines for the interpretation of CNVs called on next-generation sequencing data. These new guidelines are the first to provide a robust set of rules for the interpretation of small intragenic deletions and duplications and are now automated in VSClinical.  … Read more »

New Mendel Error Algorithm in VarSeq

         March 2, 2021
mendel algorithm

In many cases, VarSeq users typically run single trio projects or perhaps an extended family project. Not only are all the inheritance model algorithms available in the VarSeq software to capture de novo, dominant, or recessively inherited variants but there are a number of quality control fields to help ensure the pedigree was set up properly. The last thing any… Read more »

New VSClinical ACMG Word Report Templates

         February 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. We will cover the three different report templates that ship… Read more »