Let’s say you are the director of a large lab, which is running tens or hundreds of standard NGS sample analyses per week. You have a number of employees with varying levels of analysis background, and you want to be sure everyone is running the analysis the same way. You are also concerned about updating catalogs that could create differences… Read more »
Oftentimes, the endpoint of a clinical variant analysis is a standardized, clinical report. As such, we ship a number of default templates with VSClinical for users to report their findings. But these templates are just a starting point! Our platform allows users to fully customize their reports to adhere to lab-specific preferences. We have shared a plethora of how-to’s on… Read more »
Advances in high-throughput sequencing have allowed us to be able to detect structural variants such as copy number variants in addition to small variants such as SNVs and indels. We provide users with an industry-leading CNV calling algorithm to detect CNVs directly from their next-generation sequencing data including whole genome, whole exome, and gene panel datasets, and also import CNVs… Read more »
While the interpretation of germline variants generally focuses on the pathogenicity of a variant for a specific disease, the interpretation of somatic variants is centered around each variant’s impact on clinical care. As a result, clinical trials play an important role in assessing the clinical significance of somatic biomarkers, with the AMP Guidelines assigning a higher level of evidence to… Read more »
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 »
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 »
In our previous blog, we covered the highlights of our Advanced Report Customization in VSClinical webcast in the context of germline clinical reports. Now, we bring you the next of the series: somatic clinical reports. In the recent webcast, Advanced Report Customization, we covered a range of somatic-focused clinical reports, demonstrating how easy it is to create AMP guideline-based clinical… Read more »
In order to thoroughly assess a variant’s pathogenicity, it is important to take into account the variant’s effect on splicing. While the interpretation of variants that disrupt the pairs of bases at the beginning of a splice site is fairly straightforward, variants resulting in the introduction of a novel splice site are more difficult to interpret. In this blog post,… Read more »
Golden Helix VSClinical provides a guided workflow interface for following the ACMG and AMP guidelines to evaluate variants and CNVs for NGS tests. The output of this work is most often a lab-specific clinical report. Since it was introduced, we have provided a powerful Word-based templating system to allow labs the ability to generate customized reports to include specific content… Read more »
In the September 2021 monthly update to our curated ClinVar track, we made some changes that will result in roughly another 7,000 Likely Pathogenic and Pathogenic variants being available for annotation and use in the ACMG auto-classification system. Consensus Between Labs ClinVar has nearly one million unique variant classification records that are curated into multiple annotation tracks used in VarSeq and VSClinical on a monthly basis. Clinical… Read more »
I remember visiting a patient in the NICU amongst the incubators, some glowing blue like tiny tanning beds to treat jaundice, all containing tiny humans – many smaller than a loaf of bread. Infants get admitted into the neonatal intensive care unit or NICU for many reasons ranging from elevated bilirubin, hypoglycemia, sepsis, and respiratory distress (RDS). Many are eventually… Read more »
Next-gen sequencing (NGS) comprises many sophisticated steps that are often compressed into three major sections: library prep, sequencing, and data analysis. Obviously, the goal is to simplify each of these steps, but more often than not, there is a need for multiple tools to complete each one. Regarding the data analysis, Golden Helix seeks to provide simple yet comprehensive solutions… Read more »
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. 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 I want to cover how to set up the first run along with sharing the helpful tips as they arise. … Read more »
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 of Juvenile Neuronal Ceroid Lipofuscinosis or Batten disease. A broad… Read more »
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 »
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 software regarding genes and transcripts with these gene-related changes. This… Read more »
The GenomeAsia 100K Variant Frequency database is a pilot annotation source now available to our users. This valuable database offers a deep characterization of specific populations in Asia that can be used to drive genetic studies. GenomeAsia is comprised of whole-genome sequencing data of over 1,000 individuals from 219 populations across Asia. Using this as an annotation, users can analyze… Read more »
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 ClinVar classification tracker. Golden Helix provides complete solutions to handle… Read more »
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 »
Thank you for attending the webinar focused on implementing VarSeq and VSClinical for family-based workflows. If you would like to use the webinar as a reference or were not able to attend, you can access it using the following link to view ‘Family-Based Workflows in VarSeq and VSClinical. Here is a brief recap of what we discussed: This webinar demonstrated… Read more »
