Tag Archives: Copy Number Variation

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 post will elaborate on these capabilities and demonstrate how they… Read more »

Featured in The Journal of Precision Medicine: Implementing the ACMG Guidelines for CNV in a Commercial Software Solution

         April 8, 2021

We are excited to share our latest publication with The Journal of Precision Medicine, “Implementing the ACMG Guidelines for CNV in a Commercial Software Solution”. “In 2020, ACMG in collaboration with the ClinGen working group developed a new set of guidelines for the clinical interpretation of CNVs. While theseguidelines provide a robust set of rules for interpreting intragenic deletions and… Read more »

New CNV Tools with VarSeq 2.2.2 Update

         February 16, 2021
copy number variant algorithm

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 does VarSeq 2.2.2 come with the new guideline tool, but… Read more »

Webcast Recap: A User’s Perspective: ACMG Guidelines for CNVs in VSClinical

         October 16, 2020

Our previous webcast from VP Gabe Rudy in September exposed us to some fundamentals of this years’ updated Technical standards for the interpretation and reporting of constitutional copy-number variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics (ACMG) and the Clinical Genome Resource (ClinGen). This recent webcast was dedicated to breaking down these new guidelines… Read more »

Webcast Recap: VSClinical: First Commercial Product to Integrate the Updated ACMG Guidelines for CNVs

         September 15, 2020

In our recent webcast announcing the upcoming release of VarSeq VSClinical and the implementation of the ACMG guidelines for NGS CNVs, we had a number of live questions we didn’t get a chance to cover at the end of the presentation. I will follow up on those questions in this blog post. But first, if you didn’t get a chance to join us for… Read more »

Exporting Genes as Exon Regions in VS-CNV

         June 16, 2020
CNV Het Deletion

We have had many customers come to us over the years with a simple problem: they have BAM files for whole exome or gene panel data and would like to call CNVs using VarSeq’s powerful CNV calling capabilities, but they don’t have a bed file defining the target regions for their samples. To address this problem, we have developed a… Read more »

Detecting de Novo Copy Number Inheritance and Family Segregations

         April 23, 2020

In trio workflows, one of the most important factors in scoring a variant is understanding how that variant is inherited from the parents. Likewise, when looking at extended families, the segregation, or presence of the variant among the affected versus unaffected individuals provides evidence for its pathogenicity for a given phenotype or disease. Given the nature of Copy Number Variants… Read more »

VS-CNV; Golden Helix’s solution to replace traditional methods

         December 17, 2019

Copy Number Variation (CNV) is a type of structural variation in which sections of the genome are duplicated or deleted. Although CNV events are rare in the human population, constituting approximately 10% of the human genome, they are also associated with being causal mutations for disease phenotypes. Because of this, it is important for clinical and research settings to identify… Read more »

Secondary Analysis 3.0 – New Version Release

         January 7, 2019

We have released a new version of my eBook, “Secondary Analysis 3.0”. To download a complimentary copy, I encourage you to do so here. Next-Generation Sequencing (NGS) promises to be the ultimate paradigm when it comes to genetic research and clinical testing since it contains the complete genetic information. When it comes to the current reality in testing labs, there… Read more »

Secondary Analysis 2.0 – Part II

         August 1, 2017
Detection of CNVs

In this blog series, I will discuss the architecture of a state of the art secondary pipeline that is able to detect single nucleotide variations (SNV) and copy number variations (CNV) in one test leveraging next-gen sequencing. In Part I, we reviewed genetic variation in humans in general and looked at the key components of a systems architecture supporting this… Read more »

Secondary Analysis 2.0 – Part I

         July 18, 2017
Detection of CNVs

Human genetic variation makes us unique. On average, humans are to 99.9% similar to each other. Understanding in detail what the nature of the difference in our genetic make-up is all about allows us to assess health risks, and eventually enables Precision Medicine as we determine treatment choices. Furthermore, it enables scientists to better understand ancient human migrations. It gives… Read more »

Final thoughts on ASHG 2016

         October 25, 2016
Customer Success

ASHG 2016 is in our rear mirror. Again, it was bigger and better than the previous year. The conference hosted over 9,000 visitors from 66 countries. This gave the event a level of vibrancy that was evenly matched by the wonderful ambiance of the city of Vancouver. Nestled in between the two conference centers was a little pier offering spectacular… Read more »

Why Call CNVs: Getting More from your NGS Data

         October 11, 2016
CNV Call

Copy Number Variants have been important to clinical genetics for quite a while now. So, what has made now the right time to be looking at calling CNVs from NGS data? Well, there are a number of good reasons. The dominant one is simply that the NGS data you are already creating for calling variants can be used in many cases… Read more »