Category Archives: Bioinformatic support

New dog, old tricks: How to bring existing variant catalogs into VarSeq

         May 15, 2023

Learn how VarSeq revolutionizes NGS workflows by enabling the integration of comprehensive internal databases, allowing bioinformaticians to create custom pipelines and maximize data analysis efficiency. Are you a current (or future) VarSeq user with a perfect, comprehensive, internal database you simply can’t part with and can’t replicate? Do you dream of coalescing many disparate workflows into a consistent, reliable pipeline?… Read more »

VarSeq Customization and Automation with VSCode

         March 9, 2023
VarSeq Customization and Automation with VSCode Blog

Enhancing VarSeq Customization and Automation with Visual Studio Code: A Guide to Evaluation and Reporting Scripting Are you as excited as we are about the new automation and customization features we’ve been rolling out with VarSeq’s most recent release, VarSeq 2.3.0? Do your eyes light up at the prospect of automated integration of various data sources into VarSeq’s evaluation and… Read more »

Exploring the CRAM File Format in VarSeq 2.3.0

         January 17, 2023

Unlocking the Potential of CRAM Files: The New VarSeq 2.3.0 Release for Enhanced Plotting, Coverage Analysis, and CNV Detection The CRAM (Compressed Reference-oriented Alignment Map) file format was conceived in 2011 as a more space-efficient way to store alignment data. It saves space over the previous standard BAM (Binary Alignment Map) by only storing the differences between each read and… Read more »

4 Essential Support Resources for Golden Helix Software Users

         January 5, 2023
4 Essential Support Resources for Golden Helix Customers BLOG Image

Golden Helix provides extensive resources to help our users who are just getting started and address any issues they may encounter as they become more familiar with our software. Our resources are constantly updated and are tailored to the needs of our users. If you’re facing a problem, it’s likely that others have encountered it as well, and we’ve included… Read more »

Using rsID lookup in a VarSeq Workflow

         October 4, 2022

There are many reasons a user may wish to focus in on specific variants as part of variant annotation and filtration workflow. You may be looking for the occurrence of specific SNPs in a cohort or perhaps looking for variants known to be associated with specific forms of cancer. For both of these use cases, VarSeq provides a Match String… Read more »

Streamlining Variant Analysis for Large Genetic Cohorts: Part 1

         September 27, 2022

Large genetic cohorts require substantial effort to analyze. Genetic researchers are increasingly turning to whole exome and whole genome sequencing analyses for their clinical diagnostics and research. However, with that approach comes the challenge of making sense of these massive datasets. This is especially challenging when looking for tools that can streamline variant analysis for large genetic cohorts and include… Read more »

Using ACMG Secondary Findings v3.0 List in VarSeq and VSClinical

         December 21, 2021

As the number of genes on a gene panel increases, there is the possibility of picking up variants of medical significance that are not related to the primary indication for the test. Especially with large gene panels, exomes, and genomes, it is medically and ethically important to report variants that may be actionable to the patient. These include variants implicating… Read more »

Consideration when using CADD in your NGS Workflow

         December 15, 2021

VarSeq serves as a streamlined approach to handle the rare variant analysis typically carried out for your next-generation sequencing data. Our team at Golden Helix seeks to simplify this process by automating the curation of staple databases needed for filtering and evaluation of clinically relevant variants. The goal we seek to accomplish with our software is to provide ease in… Read more »

Alternate Allele Frequency and VCF File Format

         December 7, 2021

VCF file format comes with a lot of interesting quality assurance and statistics fields that can be used for filtering in VarSeq. Open your files in a text editor to see all the fields that are available in your files, each field will have a header line with a description of its content. See the VCF Specifications to help with… Read more »

Selecting Clinically Relevant Transcripts in VarSeq

         June 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 in the messy reality of biology. It doesn’t take many… Read more »

A Simple Guide to Curating Genome Assemblies

         June 8, 2021
curate

A common feature request from Golden Helix customers is to curate and make available genome assemblies for different plant and animal species. These requests commonly come from SVS users as many research projects are being carried out, and having the genome assembly available for analysis is essential. That being said, Golden Helix has an SVS Tutorial available that walks users… Read more »

Importing CNVs using VSPipeline

         June 2, 2021

VSPipeline is a command-line interface that will provide high throughput environments the ability to tap the full power of VarSeq’s algorithms and flexible project template system from any command-line context, including the existing bioinformatics pipeline. This feature is a great resource for analyzing large sample volumes as it automates importing and annotating your data, which can help streamline your analysis… Read more »

Using Gene Preferences in VarSeq and VSClinical

         April 20, 2021

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 »

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 »

Shared Data in VarSeq

         July 22, 2019

When using VarSeq; annotations, application settings, and assessment catalogs are all stored locally. Sometimes these resources can grow to large space grabbing directories, causing you to either purchase additional storage devices or getting rid of previously downloaded resources you might need down the road. But there’s hope! You can set where you want all of your data stored to be… Read more »

Sentieon’s Secondary Analysis Tools Explained

         September 12, 2017
Sentieon

We find ourselves talking about our partnership with Sentieon, a lot! More specifically, we are always extolling the powerful, comprehensive genomic data analysis solution we are able to offer our clients. Sentieon’s Secondary Analysis Suite made a significant improvement in runtime over BWA-MEM, GATK, Mutect, and MuTect2 while providing deterministic and identical results. Here are two fantastic white papers that… Read more »

Top 10 Posts for Understanding Clinical Annotation of Genomic Variants

         August 24, 2017
Top 10

The VarSeq clinical platform is built on a strong foundation of data curation and annotation algorithms to ensure the variants identified have all the information required to make the correct clinical assessments.  It’s easy to make light of “variant annotation”, but the details run very deep into the roots of how we represent genomic data, how public data is aggregated, stored… Read more »

Annotating with gnomAD: Frequencies from 123,136 Exomes and 15,496 Genomes

         May 16, 2017
annotating gnomAd

Annotating with gnomAD: Frequencies from 123,136 Exomes and 15,496 Genomes When the Broad Institute team lead by Dan MacArthur announced at ASHG 2016 that the successor to the popular ExAC project (frequencies of 61,486 exomes) was live at http://gnomad.broadinstitute.org/, I thought their servers would have a melt-down as everyone immediately jumped on and started looking up their favorite genes and… Read more »

Massive Variant Boost to ClinVar & PubMed Citation Fields

         January 24, 2017
ClinVar

It may have been easy to miss in the drum-beat of monthly annotation updates we do here at Golden Helix, but there are a couple of things that are very special about the January update to the ClinVar database: We added new fields including HGVS names of variants and citations in PubMed for variants ClinVar nearly doubled in size by… Read more »

Using Assessment Catalogs in your VarSeq workflow

         December 15, 2016
Variant Assessment Cataloug

Variant interpretation is an integral part of any workflow that results in some decisions being made about the validity and suspected functional impact of a variant in a given sample and their presenting phenotypes. The VarSeq Assessment Catalog functionality is designed to assist the VarSeq user in streamlining this process. To include this functionality in your workflow, you will first… Read more »