Tag: SARS-CoV-2

Introducing SARS-CoV-2 Variants Overview, NLM’s latest tool in the fight against COVID-19 

Introducing SARS-CoV-2 Variants Overview, NLM’s latest tool in the fight against COVID-19 

The National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM) has released a new resource, called the SARS-CoV-2 Variants Overview, that aggregates data related to SARS-CoV-2 variants from sequences available in NCBI’s GenBank and Sequence Read Archive (SRA) databases.

SARS-CoV-2 Variants Overview, a freely available online dashboard, was developed with guidance from the TRACE Working Group as part of NLM’s participation in the National Institutes of Health (NIH) Accelerating COVID-19 Therapeutic Interventions and Vaccines (ACTIV) initiative, a public-private partnership for a coordinated research strategy to support and speed up the development of COVID-19 treatments and vaccines.

One impetus for development of the dashboard is that unassembled SRA data cannot be processed through Pango tools, and many SARS-CoV-2 samples are only represented in SRA. The Pango nomenclature is being used by researchers and public health agencies worldwide to track the transmission and spread of SARS-CoV-2, including variants of concern. Thus, we developed a uniform approach to making variant calls from SRA records and assigning Pangolin lineages on the basis of these results. This means that submission groups do not have to go through the effort of creating assemblies. Continue reading “Introducing SARS-CoV-2 Variants Overview, NLM’s latest tool in the fight against COVID-19 “

Four new options to simplify your SARS-CoV-2 submissions

Four new options to simplify your SARS-CoV-2 submissions

We have recently added several exciting improvements to the SARS-CoV-2 GenBank submission process based on community feedback. To save you time, NCBI completes feature annotation for you, which means SARS-CoV-2 GenBank submission only requires a FASTA file and source metadata. Here are other new features to ease and simplify your submission workflow.

Automatically remove failed sequences from a submission: On the web, a single click lets you opt-in to automatic removal of failed sequences (Figure 1) so that the rest of your sequences can be swiftly accessioned! A report provided after the submission lists your failed sequences and points out potential sequence problems so that you can take a closer look after your error-free sequences are released. This option is also available for submission via FTP.

Need to set up FTP submissions? The NCBI team is here to help. Contact gb-admin@ncbi.nlm.nih.gov.

Figure 1. GenBank submission page showing the option to remove sequences with processing errors.

Continue reading “Four new options to simplify your SARS-CoV-2 submissions”

June 30 Webinar: Using NCBI Datasets to download sequence and annotation for genomes and genes

June 30 Webinar: Using NCBI Datasets to download sequence and annotation for genomes and genes

Join us on June 30, 2021 at 12PM eastern time to learn how to use the new NCBI Datasets resource to find and download gene, genome and SARS-CoV-2 sequence and annotation. You will learn how to access these datasets through either the web interface or the new command-line tools that allow you to incorporate these data in your bioinformatic workflows.

  • Date and time: Wed, June 30, 2021 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 webinars playlist on the NLM YouTube channel. You can learn about future webinars on the Webinars and Courses page.

Structure viewer iCn3D version 3 featuring analysis of 3D structures!

The NCBI structure viewer iCn3D version 3 is now available on the NCBI web site and from GitHub.

Analysis of 3D Structures

You can use the current version with the icn3d package at npm to write scripts to call functions in iCn3D. For example, this script on GitHub can calculate the change in interactions due to a mutation.  The results of this analysis for the structure (6M0J) of the SARS-CoV-2 spike protein bound to the ACE2 receptor are displayed in Figure 1. These show the predicted changes in interactions with other residues in the the SARS-CoV-2 spike protein and in the ACE2 receptor when the asparagine (N) at position 501 of the spike protein is changed to a tyrosine (Y). You can also run these scripts from the command line to process a list of 3D structures to get and analyze annotations.

Figure 1. iCn3D viewer showing the predicted interactions with other residues in the spike protein and in the ACE2 target when the asparagine (N) at position 501 of the SARS-CoV-2 spike protein is substituted with  tyrosine (Y), highlighted in yellow. Interactions were calculated using the script interactions2.js.

Continue reading “Structure viewer iCn3D version 3 featuring analysis of 3D structures!”

A dedicated SARS-CoV-2 BioSample submission package in the NCBI Submission Portal

During the COVID-19 pandemic, it is critical to collect descriptive information about the provenance and attributes of SARS-CoV-2 genomic samples so that the course of the virus may be tracked and analyzed. The NCBI Submission Portal now includes a dedicated BioSample submission package to help further improve the quality and richness of submitted SARS-CoV-2 sample metadata. The SARS-CoV-2 clinical or host-associated package presents a framework and standardized fields for submitters to provide attributes considered useful for the rapid analysis and surveillance of SARS-CoV-2 clinical and host-associated cases. For example, mandatory attributes include collection date and geographic location, while suggested but optional attributes include date of SARS-CoV-2 vaccination, vaccine received, and host disease outcome.

a mock-up of a SARS submission shows fields for important metadata
Figure 1. This mock-up shows mandatory attributes like collection date and geographic location, as well as suggested attributes like date of vaccination and host disease outcome.

Continue reading “A dedicated SARS-CoV-2 BioSample submission package in the NCBI Submission Portal”

Data for SARS-CoV-2 variants now available at NCBI

Looking for genomes for the B.1.1.7 SARS-CoV-2 variant? NCBI now supports searches for SARS-CoV-2 variant names such as B.1.1.7, B.1.351, or P.1. For example, search for B.1.1.7 (Figure 1) and you’ll see a virus classification box with an option to download a SARS-CoV-2 data package. SARS-CoV-2 data packages include genome and protein sequences and a detailed data report for all SARS-CoV-2 genomes classified as that variant. SARS-CoV-2 genome lineages are classified by pangolin, using the pangoLEARN algorithm.

Figure 1. SARS-CoV-2 variant search result with button to download a data package containing data for all SARS-CoV-2 genomes matching that variant lineage, B.1.1.7 in this case.

Continue reading “Data for SARS-CoV-2 variants now available at NCBI”

New NCBI Datasets home and documentation pages provide easier access

NCBI Datasets, the new set of services for downloading genome assembly and annotation data (previous Datasets posts), has redesigned and reorganized web pages to make it easier to find and access the services and documentation you need.

NCBI Datasets has a fresh new homepage (Figure 1) highlighting the types of data available through our tools. Available data include genome assemblies, genes, and SARS-CoV-2 genomic and protein data.  You can easily access these from the new page or learn more with our new documentation pages.

Figure 1. Features of the new Datasets homepage with quick access to help documentation including the Quickstart and How-to guides as well as access to Genome, Gene, and Coronavirus Data, and the Datasets and Dataformat command-line tools. Continue reading “New NCBI Datasets home and documentation pages provide easier access”

NCBI on YouTube: RAPT and BLAST+ on the Cloud, SARS-CoV-2 genome data in Datasets

It’s time we do another roundup of what’s been happening on YouTube!

First up, the NCBI YouTube channel has merged with the NLM YouTube channel. You’ll now be able to find diverse content all on one channel, from tips on using resources to fascinating moments in the history of medicine and more!

Continue reading “NCBI on YouTube: RAPT and BLAST+ on the Cloud, SARS-CoV-2 genome data in Datasets”

The latest in COVID-19 related human gene annotation now in NCBI RefSeq and Gene

Interested in human genes involved in COVID-19 biology? NCBI’s RefSeq group has been hard at work compiling a set of human genes with roles in coronavirus infection and disease. You can now see and search for these genes and their regulatory elements in NCBI Gene and RefSeq.

Figure 1. Top section of the human ACE2 record in the Gene database. COVID-19 information can be found in the Summary and Annotation information sections.

Continue reading “The latest in COVID-19 related human gene annotation now in NCBI RefSeq and Gene”