Author Archives: Darby Kammeraad

Darby Kammeraad

About Darby Kammeraad

Darby Kammeraad is the Field Application Scientist Manager at Golden Helix, joining the team in April of 2017. Darby graduated in 2016 with a master’s degree in Plant Sciences from Montana State University, where he also received his bachelor’s degree in Plant Biotechnology. Darby works on customer support and training. When not in the office, Darby is learning how to play guitar, hunting, fishing, snowboarding, traveling or working on a new recipe in the kitchen.

Getting Started Guide for Sentieon – Part II

Sentieon

Creating Custom Scripts The first part of the Getting Started Guide for Sentieon described the steps for downloading the Sentieon tools, acquiring a license file, and running the example script/pipeline to generate the VCF and BAM files. This blog will cover some custom script changes users can make to add more efficiency when running through multiple samples at once. We… Read more »

Getting Started Guide for Sentieon

Sentieon

Sentieon; your swift secondary analysis solution. Golden Helix’s software solutions present a reputable and top-quality analysis of your NGS data. Looking at this process from a 30,000 ft view, the annotation and filtering of variants in your vcf files and discovery of CNVs based coverage data in the bam file make up the tertiary level portion of the analysis. However,… Read more »

Processing Hereditary Cancer Panels in VarSeq: Webcast Q&A

Our “Processing Hereditary Cancer Panels in VarSeq” webcast was a great lesson for viewers to learn more about the functionality of our software. If you didn’t have a chance to join us for the live event, you can watch the recording on our site here. Q: What is the best place to get clinical interpretations of breast cancer variant interpretations?… Read more »

CNV Setup & Quality Assessment: Part 2

annotate

With this two-part blog series, users should now be able to perform CNV analysis using their data, set up basic quality filter standards to isolate high-quality events and utilize annotations to hone in on publicly known events as well as in-house recorded CNVs from previous projects.

CNV Setup & Quality Assessment: Part 1

annotate

2017 was a busy year regarding the development of our CNV tools. Since the release of the CNV caller, we have produced quite a bit of content tailored to assist our users with getting started. Here are some links: Robarts Research Institute CNV analysis on patients with familial hypercholesterolemia CNV annotations Common CNV questions CNV calling with shallow whole genome… Read more »

Using NGS to detect CNVs in familial hypercholesterolemia Q&A

First-place Abstract Competition Winner, Michael Iacocca, shared his research with the Golden Helix Community during our February webcast ‘Using NGS to detect CNVs in familial hypercholesterolemia‘. In this webcast, he gave a great explanation on how our CNV caller aided his team in their research. If you were unable to join us for the event, you can find a recording… Read more »

Genomic Prediction Methods in SVS Q&A

VS-CNV Annotations

Yesterday’s webcast, Genomic Prediction Methods in SVS, gave attendees a chance to see how the principles of genomic prediction are applied within SVS, predicting phenotypes for both plant and animal species. You can find a recording of the webcast on our site here should you be interested in checking it out or sharing with a colleague! The webcast garnered a… Read more »

Annotation Education Series: CNV Annotations

CNV Annotations

With the recent upgrade to VarSeq 1.4.7, users gain access to some new great features. Among the additions are new CNV annotations (Figure 1). In this final chapter of the annotation blog series, we are going to provide descriptions of the new CNV annotations and how they can be used. The types of CNV annotations vary and include frequency, clinical… Read more »

Annotation Education Series: Frequency, Functional Prediction, and Gene Annotations

VarSeq annotations

In our final chapter of this variant annotation blog series, we will discuss additional annotations that provide powerful variant filtering and analysis capability. Golden Helix curates many annotations in a way that allows for simple analysis and saves the users the hassle of all this data management. Whether you are trying to capture rare variants known across multiple subpopulations in… Read more »

Annotation Education Series: Cancer Annotations

CIViC The Clinical Interpretations of Variants in Cancer, better known as CIViC, is an open access open source, community-driven web resource available to all VarSeq users. Nature Genetics published an article that states, “CIViC accepts public knowledge contributions but requires that experts review these submissions”. Fundamentally, the focus behind CIViC is to make sure the variants contained in the database… Read more »

New VarSeq Single Exome Demo Project

single exome

As VarSeq is quickly becoming the go-to variant analysis software for tertiary analysis, we want to give our readers the opportunity to examine completed projects from start to finish. As an addition to the currently available demonstration projects, we are pleased to provide users with a Single Exome Analysis example project. To access this project simply click here to download… Read more »

Annotation Education Series: Clinical Assessment Tracks

Clinical Assessment Tracks Golden Helix provides a large catalog of annotation sources for our research and clinical clientele. Making these public data repositories available to all our users is no easy task. As Cody Sarrazin mentioned in his blog post, annotation curation is a complex data science pipeline. This process aggregates data from many disparate sources and normalizes it into… Read more »

Frequently Asked Questions: CNV analysis in VarSeq

CNV FAQ

The support team at Golden Helix is always here to help with your SVS and VarSeq needs. Often, we receive some excellent questions that should be shared with the rest of our users. This blog will answer some common questions we’ve been seeing lately regarding VarSeq CNV. I’ve noticed there is a version 2 of the CNV caller on Targeted Regions Algorithm, how has… Read more »

Cancer Gene Panels Tutorial

cancer gene panel tutorial

VarSeq enables breakthrough discoveries in cancer diagnostics by supporting gene panel testing and whole exome and genome analysis. We wanted to share our Cancer Gene Panel tutorial which covers a basic gene panel workflow with an emphasis on adding, modifying and manipulating filter chains. This tutorial will start with creating a new project from an empty project template, importing data, creating… Read more »

New Tutorial: VSReports

      Darby Kammeraad    May 11, 2017    No Comments on New Tutorial: VSReports
cancer gene panel tutorial

The new VSReports tutorial covers a basic VSReports workflow with an emphasis on understanding and exploring report customizations. This tutorial requires an active VarSeq license with the the VSReport feature included. You can go to Discover VarSeq or email info@goldenhelix.com to request an evaluation license with the VSReports functionality included. VS Reports provides the ability to generate clinical-grade reports. This feature enables VarSeq… Read more »

New Tutorial: VSWarehouse

      Darby Kammeraad    April 27, 2017    No Comments on New Tutorial: VSWarehouse
cancer gene panel tutorial

The new VSWarehouse Tutorial covers the basic VSWarehouse workflow.This tutorial focuses on connecting to a VSWarehouse instance from VarSeq, adding an existing VSWarehouse project as an annotation source and using reports and assessment catalogs hosted on VSWarehouse. This workflow requires an active VarSeq license with the VSWarehouse feature included. You can go to Discover VarSeq or email info@goldenhelix.com to request an… Read more »

By Popular Request: Our BEAGLE Algorithm Gains Support for Family Structure

family structure

Earlier this year we released our own optimized and integrated BEAGLE implementation for SVS based on the BEAGLE 4.1 and optionally 4.0 algorithms. One of the commonly requested features since that released was to expand the algorithm implementation to be considerate of the parent-offspring relationship between samples to inform and improve the accuracy of the haplotype phasing.  With this information,… Read more »

Coming Soon! The genome Aggregation Database (gnomAD)

VarSeq Updated

Ever since the MacArther Lab announced the new gnomAD browser at last year’s ASHG conference, we have had many requests from our customers to make this new variant frequency source available within both VarSeq and SVS. This new dataset includes variants obtained from 123,136 exome sequences and 15,496 whole-genome sequences. In comparison to the original ExAC dataset which contained exomes… Read more »

New Tutorial: VarSeq CNV Caller

cancer gene panel tutorial

The new VarSeq CNV Caller Tutorial covers the basics of the VarSeq CNV calling algorithm, with an emphasis on visualization and interpretation of results. This workflow requires an active VarSeq license with the CNV Caller on Target Regions feature included. You can go to Discover VarSeq or email info@goldenhelix.com to request an evaluation license with the CNV functionality included. The… Read more »

Adding RSIDs to your SVS marker mapped spreadsheet

VarSeq Updated

In the new Genotype Imputation tool that is coming soon to SVS, allele encoding is an important part of matching data between the target and the reference panels. If the same platform provider is being used, then A/B encoding can be used. However, it’s better to use the Reference/Alternate allele encoding associated with AGCT format to ensure accuracy. If an… Read more »