Tag Archives: VarSeq

ACGS Guidelines Now Available in VSClinical

         January 7, 2021
ACGS Guidelines Screen Shot

Golden Helix offers a market-leading bioinformatics solution that allows users to evaluate next-generation sequencing variants according to the ACMG and now ACGS guidelines. The ACMG guidelines were created in 2015 and are widely accepted as best practice for the interpretation of sequencing variants throughout the United States (Richard et al 2015).  Very similar are the ACGS guidelines that were developed… Read more »

VarSeq 2.2.2 Release Notes

         December 23, 2020
ClinVar

VarSeq 2.2.2 was released on December 17th, 2020 and the main feature that was added to VarSeq was that the VSClinical ACMG Guidelines workflow now has an additional CNV interpretation framework based on the ACMG/ClinGen guidelines. This product supports interpreting CNVs detected with VS-CNV or imported CNVs alongside variants and requires both a VSClinical ACMG license and a CNV license…. Read more »

Customer Publications Featuring VarSeq December 2020

         December 23, 2020

Reading scientific articles that our customers have recently published is one of my favorite things here at Golden Helix. It is fascinating to learn about the research and to see the various ways our software gets put to the test.Since we are rolling out our most extensive VarSeq update yet, I thought it would be a great time to look… Read more »

Need Coverage Statistics? VarSeq Has You Covered!

         December 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 2.2.2 release of VarSeq, there are some new features that… Read more »

Loss-of-Function Splice Variant in MTHFR

         November 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. However, any applied filters must also ensure no interesting variants inadvertently get filtered out. Golden Helix provides the tools to complete this… Read more »

New Algorithm: Variants Matching Current Sample

         November 12, 2020
New Algorithm: Variants Matching Current Sample

Those of you who have been attending our recent webcasts have learned about our upcoming VarSeq release. A part of that release will be an additional algorithm that will annotate variants matching the current sample. If you are not familiar with these webcasts, here are several on-demand webcasts I recommend to get you familiar with these new features: Evaluating Copy… Read more »

Annotate your VarSeq Projects with REVEL

         October 6, 2020

Typically, researchers are looking for rare variants in their next generation sequencing datasets. However, most of the nonsynonymous variants have unknown significance because there is an inherent difficulty in validating large numbers of rare variants or even detecting rare variants with high statistical power. In lieu of this issue, computational tools are needed as they accurately predict the pathogenicity of… Read more »

VarSeq’s NGS Panel Workflow: COL4A2 Variant from an Intellectual Disability Panel

         October 1, 2020

A common discussion with our customers includes the challenges with the tertiary stage of analyzing next-gen sequencing data. This is the stage where all data from gene panels, exome, or whole genome scale pass through filters to quickly isolate the clinically relevant variant contributing to a patient disorder. Golden Helix has recognized these challenges in the scale of data and… Read more »

Updates to dbSNP 154 v2

         September 3, 2020

In the 1990s the genetic industry voiced a request for a variant catalog that incorporates associated variant information such as phenotypic and metabolic pathways. The call was answered by NCBI, which created dbSNP; dbSNP became publicly available in 1998 and around 1.5 million variants. Fast forward to the present and dbSNP now contains over 2 billion SNPs spanning human, rat,… Read more »

Kaviar and Allele Frequency Aggregator (ALFA): the databases you didn’t know existed in VarSeq.

         August 4, 2020

In the search for disease causing mutations it is important to determine if the variant has been previously observed in humans and at what frequency. With the advent of increasing genomic information, there is now a variety of different databases and annotation sources that can be utilized. For some, this could be a tedious task that leads only to implementing… Read more »

CADD Scores: New and Improved v1.4 and v1.5

         June 18, 2020

The University of Washington’s Combined Annotation Dependent Depletion (CADD) algorithm measures the deleteriousness of genetic variants. This includes single nucleotide polymorphisms (SNVs) and short insertions and deletions (indels) throughout the human reference genome assembly. This algorithm was introduced in 2014 and has since become one of the most widely used tools to assess human genetic variation. Since 2014, the algorithm has been… Read more »

Updates to Default Transcripts and Gene Preferences in VarSeq

         June 9, 2020

An under-appreciated area of complexity when looking into the field of genetics from the outside can be found in genes and transcripts. Alternative splicing allows eukaryotic species to have a wonderfully powerful genetic code, resulting in multiple protein isoforms being encoded in a single section of DNA. But when it comes to variant interpretation, different transcripts can result in widely different predicted… Read more »

Auto-Updating Template Sources

         May 21, 2020
ClinVar

In VarSeq 2.2.1, you can set template annotation sources to automatically update to the latest version. Previously, VarSeq templates were frozen in time. Now, each new project created from a template would use the same source that was used when the template was created. When you save a template, you can have the sources automatically update to the latest version…. Read more »

Webcast Recap: Next-Gen Sequencing of the SARS-CoV-2 Virus with Golden Helix

         May 13, 2020

Thank you to everyone who joined me for our latest webcast, “Next-Gen Sequencing of the SARS-CoV-2 Virus with Golden Helix.” If you missed the live event and are interested in knowing what we talked about, you may access the recorded event below: Our Live Q&A generated a lot of great questions. Unfortunately, we were unable to answer them all, but… Read more »

VarSeq 2.2.1 Release Notes

         April 10, 2020
ClinVar

VarSeq 2.2.1 was released on April 1st and features an upgraded gene annotation capability with new RefSeq genes tracks and an AMP workflow addition: the Drugs and Trials tab. The new RefSeq human genome genes tracks contain updated gene names and the recognition of any MANE (Matched Annotation from NCBI and EMBL-EBI) identified transcripts. VarSeq has been updated to be… Read more »

Updated VSReports Project Templates

         March 10, 2020

Generating a clinical report is the final step of most NGS pipelines and is important as it relays results and information to legacy systems, physicians and ultimately the patient. As reporting is a valuable process, Golden Helix offers reporting capabilities according to the ACMG and AMP guidelines but also as a standalone feature in VSReports. VSReports is a platform that… Read more »

VarSeq Cancer Gene Panel Tutorial

         March 3, 2020
annotate

At Golden Helix, we want our new users to hit the ground running with VarSeq and not spend oodles of time getting started building and automating their workflows. To achieve this goal, our team has generated blogs, webcasts, and tutorials that explain and demonstrate workflows that are possible with VarSeq. Each VarSeq tutorial offers step by step instruction in which… Read more »

Powerful Cohort Analysis with VarSeq’s Count Alleles Algorithm

         February 25, 2020

Although VarSeq is intentionally designed to be a clinical NGS pipeline tool able to run a handful or even single samples through, we have many users who run large cohort style studies with the tool as well. One common use is to compare case/control data to isolate variants shared among affected individuals and exclude those in unaffected. One incredibly powerful… Read more »

VarSeq CNV Caller Tutorial

         February 20, 2020

Since the initial release of the CNV algorithms in VarSeq, our team has created a variety of content to help users get started with building their CNV projects. In our webcast library, you can find a few of our recent webcasts in 2019 covering CNV workflows and validation: Clinical Validation of Copy Number Variants Using the AMP Guidelines CNV Annotations:… Read more »

Updated GRCh38 VarSeq Project Templates

         February 4, 2020

As many of our users know, VarSeq comes shipped with various project templates that are designed to give users a baseline workflow to get started with their projects. These templates are tailored for various applications including tumor-normal, trios, cancer and hereditary gene panels, and ACMG Guidelines workflows. The templates contain application-specific annotation sources and algorithms that will automatically load into… Read more »