Best Practices in Genetic Analysis

Using Evaluation Scripts to Automatically Incorporate Secondary Evidence into Your AMP Workflow

Jun 15, 2023

The AMP guidelines workflow in VSClinical provides a user-friendly tool for the interpretation of somatic biomarkers across the entire spectrum of genomic variation, forming a key part of any robust somatic analysis pipeline. One of the most useful features of this workflow is its ability to streamline the evaluation of…

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Transitioning to Broad-Scale Genomics: From Gene Panels to Whole Genome Sequencing

May 16, 2023

Explore the evolving landscape of genomic analysis, transitioning from targeted gene panels to whole genome sequencing. A recent trend with our customers has been to expand their workflows from small panel sequencing analyses to larger whole exome and genome sequencing analyses. The decreasing cost of sequencing has made this a…

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Getting the most out of variant visualizations in GenomeBrowse

Jun 29, 2022

Genomic data visualization is an extremely powerful means to help users comprehend massive amounts of sequencing data and is valuable for communicating genomic information and findings. Genome browser tools allow users to visualize aligned sequence data in BAM format, map the data to a reference assembly, view annotation tracks, genomic…

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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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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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Highlights from our PhoRank 2.0 Webcast

Jun 10, 2021

Thank you to those who attended our recent webcast, “PhoRank 2.0: Improved Phenotype-Based Gene Ranking in VarSeq”. For those who could not attend, you can find a link to the recording here. This webcast covered upcoming improvements to the PhoRank phenotype-based gene ranking algorithm based on literature published in the…

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Variant Filtration and Interpretation

Jun 3, 2021

I learned about Batten disease from a childhood friend’s Facebook post. Over the course of a few months, her 8-year-old, Eva, the oldest of 4 daughters – Emily, Lucy, and Carly – was rapidly going blind. Baffled, doctors ran a genetic panel that returned a devastating result – the diagnosis…

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Case Study – Hannover Medical School

May 11, 2021

Dr. Auber is the team leader for the molecular genetic diagnosis of hereditary diseases at the Institute for Human Genetics at Hannover Medical School (MHH). MHH is one of the largest hospitals in northern Germany, with one of the largest outpatient clinics for individuals and families dealing with hereditary cancer…

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VarSeq NGS Workflow Design: Clinical vs. Research

Apr 22, 2021

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…

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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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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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New Mendel Error Algorithm in VarSeq

Mar 2, 2021

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…

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New CNV Tools with VarSeq 2.2.2 Update

Feb 16, 2021

Our latest release of the VarSeq software has had a major upgrade with the addition of the new CNV ACMG guidelines! Here are some recent webcasts we’ve given covering the new guideline tool: Family-Based Workflows in VarSeq and VSClinical A User’s Perspective: ACMG Guidelines for CNVs in VSClinical Not only…

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Applying the Probability Segregation Algorithm for CNV Analysis

Feb 4, 2021

VarSeq 2.2.2 has incorporated a multitude of interesting new features. In this blog, I want to continue discussing these features and how each can be incorporated into your workflow. I will also discuss the application of the Probability Segregation algorithm for copy number variation (CNV) analysis. The Probability Segregation algorithm…

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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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Need Coverage Statistics? VarSeq Has You Covered!

Dec 15, 2020

Curious about how coverage statistics can be used in conjunction with VarSeq? Evaluating the coverage over target regions or whole genomes is essential whether you are working with variant or CNV analysis. VarSeq has had the capability to compute sample level coverage statistics for some time now, but in the…

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Loss-of-Function Splice Variant in MTHFR

Nov 26, 2020

In this blog post, I will be analyzing a loss-of-function splice variant in MTHFR using VarSeq. In the search for clinically relevant variants contributing to rare disorders, efficient filtering strategies are an important step in eliminating disinteresting variants. VarSeq supports end-to-end rare disease analysis, from panel-level filtering to clinical variant…

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Golden Helix gets full marks in ClinGen’s list of Genomic Analysis Software Platforms

Aug 26, 2020

The potential of genetic testing to impact a patient’s life has been greatly accelerated by the sharing of variant interpretations done by clinical labs in public repositories such as ClinVar. This is not an inevitable outcome, but the persistent work and advocacy of people like Dr. Heidi Rehm and organizations…

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Golden Helix’s End-to-End Architecture for Clinical Testing Labs

Dec 19, 2019

As clinical genetic tests have been adopted as a critical enabler of precision medicine, the number of tests offered by clinical labs and the volume of tested patients has grown by orders of magnitude in the past five years. The Gene Testing Registry, managed by the NIH, documented a rise…

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