50,000 new clinically relevant structural variation calls in dbVar


We’ve expanded the catalog of clinically relevant structural variants (SV) in dbVar by adding 57,520 ClinVar records.  You can access the newly added data through study nstd102.

The updated collection includes:

  • 20,000 new SVs, and more than 37,000 copy number variants (CNV) observed in ClinGen laboratories during routine cytogenomic laboratory testing that were previously accessioned separately at dbVar
  • 15,000 SVs asserted as ‘Pathogenic’ or ‘Likely pathogenic’ for thousands of clinical genetic disorders including breast, ovarian, and colon cancers; hypercholesterolemia; schizophrenia; Duchenne Muscular Dystrophy; autism spectrum disorders; and many others
  • links to more than 1,600 related PubMed articles and thousands of related data records in ClinVar, OMIM, GeneReviews, MedGen, MeSH, etc.

You can browse  dbVar studies on the web or download the data.  We provide dbVar data  in a number of standard formats (VCF, GVF, and TSV) mapped to assemblies GRCh38, GRCh37, and NCBI36 allowing you perform analysis using standard tools and integrate the data into your bioinformatic workflows.

Visit our Walkthrough page to learn how to use these new dbVar data to help interpret structural variation in your favorite gene or genomic region.

Improved ClinVar search quickly connects you to information about variants


If you’ve been searching in ClinVar, you might have noticed search improvements introduced in December that reliably connect you with information on your variant of interest. ClinVar has broadened its search capability to accept many different ways of expressing the same variation, including variation described on RefSeq transcripts and proteins. If your variant expression  is not reported in ClinVar, we alert you to other variants at the same genomic location or link you to related information in other NCBI resources such as dbSNP, LitVar, and PubMed. ClinVar will also now interpret expressions that contain minor errors or warn you about improper syntax that it cannot interpret.

sensor2Figure 1.  Improved search results in Clinvar showing mapping of an HGVS expression to the equivalent variant in ClinVar.

Here are some example queries that show the improved search results.

NM_001318787.1:c.2258G>A – an HGVS expression that is not in ClinVar, but ClinVar has an alternate expression for a variant (Figure 1).

NM_004958.3:c.7365C>A – a variant not in ClinVar, but another variant is at the same genomic location is in ClinVar.

NM_002113.2:c.19delG – a variant is not in ClinVar, but there is additional information for the variant in other databases.

We welcome your feedback on your search experience and any additional ideas on how to improve searching in ClinVar.

February 6 Webinar: New Variation Services for Normalizing, Remapping, and Annotating Variants


Join us on Wednesday, February, 2019, when NCBI staff will show you how to use a new set of NCBI variation services that rely on a variant data model called SPDI (Sequence Position Deletion Insertion). These services and data model allow you to inter-convert, map and disambiguate variants in standard formats (RefSNP accessions, HGVS and VCF). Unlike many current variant notation systems, SPDI provides unambiguous, machine-readable definitions of variants. SPDI not only powers SNP build and mapping procedures at NCBI but also our variant sensors that are active in the global search and ClinVar. These services and notation system provide valuable new tools for people who work with sequence variants.additional variant information.

Date and time: Wed, Feb 6, 2019 12:00 PM – 12:30 PM EDT

Register

After registering, you will receive a confirmation email with information about attending the webinar. A few days after the live presentation, you can view the recording on the NCBI YouTube channel. You can learn about future webinars on the Webinars and Courses page.

Update single records easily with ClinVar’s Single SCV Update


The ClinVar Team is happy to announce a new online form in the ClinVar Submission Portal, the Single SCV Update, which makes it easier for you to update a single record.

ClinVar_SIngle_SCV_2The new ClinVar Single SCV Update form showing the sections for editing the evaluation date, clinical significance, condition, and citations.

Continue reading

November 14 Webinar: Variant Interpretation using NCBI Resources


Next Wednesday, November 14, 2018, NCBI staff will show you how to use NCBI’s genome browsers and other resources to interpret variants. The graphical displays of Genome Data Viewer (GDV) and Variation Viewer offer an interactive experience that allows you to explore NCBI’s rich collection of annotations, datasets and literature for deciphering your variant-associated data. In this presentation, we’ll step through case studies and show you how to quickly display relevant NCBI track sets — including the new RefSeq Functional Elements track, upload a file or remotely-hosted dataset and display these as a track, and use browser tracks to identify known variants, then assess variant functional and clinical significance and allele frequency. You will also learn how to navigate from the browsers to NCBI resources such as ClinVar, dbSNP and PubMed, for additional variant information.

Date and time: Wed, Nov 14, 2018 12:00 PM – 12:45 PM EDT

Register

After registering, you will receive a confirmation email with information about attending the webinar. A few days after the live presentation, you can view the recording on the NCBI YouTube channel. You can learn about future webinars on the Webinars and Courses page.

 

 

NCBI at ASHG 2018: Data and Clinical CoLabs introduce interactive graphical displays and medical genetics resources


As you know, NCBI will be attending American Society of Human Genetics (ASHG) 2018 in San Diego.

This year, we have two CoLabs – interactive sessions where you can learn about freely available NCBI tools and resources. Read on below for a description of each CoLab and join us at ASHG in two weeks!

Continue reading

See how dbSNP improves data quality at ASHG 2018


NCBI staff will share knowledge on various topics at the American Society of Human Genetics (ASHG) conference this month  in San Diego. Here, on NCBI Insights, we feature some preliminary details for one of NCBI’s dbSNP posters.

You can visit poster 1692W “Improving dbSNP Data Quality and Annotation for Variant Interpretation” on Wednesday, Oct. 17 from 3 PM to 4 PM at ASHG.

Continue reading

Standalone variation services replace Variation Reporter


As of July 2018, a new set of standalone variation services replaces the variant matching functions of Variation Reporter. Variation Reporter was a tool designed to search human sequence variation data by location and to report matching variants found in dbSNP, dbVar, and ClinVar.

The new services are faster, better at handling variants in repeat regions, and scalable to accommodate the continued explosive growth of variation volume. You can find more information about the services in the initial blog post and online SPDI document.

If you would like to report any issues related to these new services and/or would like to provide comments, please write to snp-admin@ncbi.nlm.nih.gov.

If you have any specific questions about the NCBI site in general, contact us at info@ncbi.nlm.nih.gov.

We appreciate your continued support and interaction with the NCBI tools.

5 NCBI articles in 2018 Nucleic Acids Research database issue


The 2018 Nucleic Acids Research database issue features several papers from NCBI staff that cover the status and future of databases including CCDS, ClinVar, GenBank and RefSeq. These papers are also available on PubMed. To read an article, click on the PMID number listed below.

Continue reading