Category Archives: Uncategorized

Custom Filtering using ClinVar Annotations

ClinVar

ClinVar is one of our most used annotations sources for a variety of workflows. It is also the public annotation source that is updated most frequently of all the sources currently supported in VarSeq. ClinVar provides new versions of their database once a month in several formats (XML, VCF, TXT). We use custom Python scripts to convert the provided VCF… Read more »

Finding Rare Mutations at the Center for Rare Jewish Genetic Disorders

Bonei Olam

Since 1999, Bonei Olam has been providing large-scale funding for fertility treatment and research. The non-profit’s mission is to provide whatever means or resources necessary to help childless couples achieve the dream of parenthood. Today, it is recognized in the worldwide medical arena for its leadership role at the forefront of reproductive medicine, research and technology. Specifically, Bonei Olam has… Read more »

Whole Exome Sequencing workflows in VarSeq

Whole Exome Sequencing Workflows

Whole exome sequencing workflows using SNP & Variation Suite (SVS) was presented in a recent webcast, by Dr. Robert Hamilton from the Hospital for Sick Kids. In particular, he performed some filtering on his data to look for only heterozygous variants in his sample of interest, removed variants with allele frequency less than 0.005% based off of the ExAC Variant Frequency… Read more »

Diagnosing Rare Disease at King Abdulaziz Medical City

King Abdulaziz Medical City

King Abdulaziz Medical City (KAMC) in Riyadh commenced its operations in May 1983. Since then, it has continued expanding, while providing services for a rapidly growing patient population in all of its catchments areas. Today, King Fahad National Guard Hospital has evolved to be part of the King Abdulaziz Medical City with many other prominent medical centers. Since its inauguration… Read more »

Alternate Allele Frequency and VCF file format

VCF file format

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 »