SGD Newsletter, December 2023

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About this newsletter:
This is the December 2023 issue of the SGD newsletter. The goal of this newsletter is to inform our users about new features in SGD and to foster communication within the yeast community. You can view this newsletter as well as previous newsletters, on the SGD Community Wiki.

Reference Genome Annotation Update R64.4

The S. cerevisiae strain S288C reference genome annotation was updated. The new genome annotation is release R64.4.1, dated 2023-08-23. Note that the underlying genome sequence itself was not altered in any way.

This annotation update included:

new uORFs for 3 ORFs:

8 new ncRNAs:

3 ORFs demoted from ‘Uncharacterized’ to ‘Dubious’ based on request from NCBI because they overlap tRNAs:

Various sequence and annotation files are available on SGD’s Downloads site. You can find more update details on the Details of 2023 Reference Genome Annotation Update R64.4 SGD Wiki page.

Textpresso updated

https://www.alliancegenome.org/textpresso/sgd/

SGD’s instance of Textpresso has recently been updated! Each week, SGD biocurators triage new publications from PubMed to load the newest yeast papers into the database. Once they are in SGD, those papers get indexed and loaded into Textpresso – a tool for full-text mining and searching. This is the new part: Content updates in SGD’s Textpresso are now happening on a weekly basis, meaning you can search full text of the very latest yeast papers!

You already love Textpresso for searching full text and its other bells and whistles:

  • Search results shown in the context of the full text – hits to query terms highlighted in situ
  • Custom corpus creation – you can decide which papers to search
  • Search using Boolean operators
  • Search scope options for document or sentence
  • Search location options can constrain to specific sections of papers

Textpresso can be accessed via the “Full-text Search” link under “Literature” in the purple toolbar that runs across the top of most SGD webpages. Now you can search full text of the very latest yeast papers each week!

Biochemical Pathways now in SGD Search

https://pathway.yeastgenome.org

YeastPathways, which is the database of metabolic pathways and enzymes in the budding yeast Saccharomyces cerevisiae, is manually curated and maintained by the curation team at SGD.

This resource is jam-packed with information, but somewhat hidden from view. To make the pathways more readily accessible, some time ago we added a new section with pathways links on the relevant gene pages. Now the pathways are available in SGD Search!

The category “Biochemical Pathways” is now available, with facets (i.e., subcategories) for References and Loci. For even easier access, we also added the Pathway names and IDs to the autocomplete in the Search box, to enable quick browsing. Enjoy!

microPublications - latest yeast papers

https://www.micropublication.org

​microPublication Biology is part of the emerging genre of rapidly-published research communications. We are seeing a strong set of microPublications come through the database and are glad for this venue to publish brief, novel findings, negative and/or reproduced results, and results which may initially lack a broader scientific narrative. Each article is peer-reviewed, assigned a DOI, and indexed through PubMed and PubMedCentral.

Consider microPubublications when you have a result that doesn't necessarily fit into a larger story, but will be of value to others.

Latest yeast microPublications:

  • Chen A, Gibney PA (2023) Disruption of GRR1 in Saccharomyces cerevisiae rescues tps1Δ growth on fermentable carbon sources. MicroPubl Biol 2023
  • Garcia B, Riley KJ (2023) Saccharomyces cerevisiae NRE1 and IRC24 Encode Paralogous Benzil Oxidoreductases. MicroPubl Biol 2023

All yeast microPublications can be found in SGD.

Updates to SGD's YeastMine data warehouse

https://yeastmine.yeastgenome.org/

Allele SGDIDs added to YeastMine

YeastMine is SGD’s data warehouse, powered by InterMine. We have so many templates (i.e., pre-defined queries) that provide access to so many different kinds of data.

A big area of focus for SGD and the yeast community is alleles. Alleles are different versions of genes that vary in DNA and sometimes protein sequence. Did you know that you can easily and quickly get all curated yeast allele data directly from YeastMine?

The Genes -> Alleles template returns data for one gene or a list of genes or the entire genome! Data include standard and systematic names for genes, gene name descriptions, allele names and descriptions, allele types, aliases, and references. SGDIDs for genes are included, and now SGDIDs for the alleles have been added. Previously, this query returned all of these data without the SGDIDs for the alleles. Based on user feedback, we have now made these allele SGDIDs available, so that they can be used to identify and distinguish different alleles.

Downloads files added to YeastMine

Back in the day, SGD maintained an FTP site to distribute data in various files. More recently, you have found these files in the SGD Downloads site. We have now moved these files to YeastMine:

From the YeastMine homepage, click Templates at top left. In the Filter, select ‘Downloads’ to constrain the list of templates.

The following query templates are listed under Downloads:

For help using YeastMine, please see the SGD Help Pages and our YeastMine playlist on the SGD YouTube Channel.

Chemical structures now on Chemical pages in SGD

Hydroxyurea CHEBI:44423

SGD curators use the Chemical Entities of Biological Interest (ChEBI) Ontology, maintained by EMBL-EBI, to describe chemicals used in experiments curated from yeast publications and displayed on SGD webpages.

You may have noticed that we have recently added chemical structures provided by ChEBI to the Chemical pages in SGD! Click the structure to zoom in, click again to zoom back out.

It’s a small detail, but we love this feature, and hope that you do too! Thanks, ChEBI!

Alliance of Genome Resources - Release 6.0

https://www.alliancegenome.org

The Alliance of Genome Resources, a collaborative effort between SGD and other model organism databases (MOD), released version 6.0 in September 2023.

Version 6.0 adds new features to gene pages:

  • New Paralogy section. Similar to Orthology, the Paralogy data are sourced from the DRSC’s DIOPT tool, which lets you view predictions from several tools at one time. Each table is ranked based on similarity, identity, alignment length, and a count of algorithms (methods) used to predict a paralogous match. See human HSPA1A gene page for an example.
  • New Sequence Detail section. For different transcripts of the gene, you can choose to view the sequence for the gene, or its CDS, cDNA, protein, gene with collapsed introns, or genomic sequence with or without 500 bp up and downstream.
  • Disease Qualifier. The qualifier describes whether a gene may be, for example, a marker_for the onset of a disease, or implicated_in the severity of a disease.
  • Disease “Annotation details”. The pop-up for individual table rows has expanded to include Association, Additional Implicated Genes, Genetic Modifiers, Strain Background, Genetic Sex, Notes, and Annotation Type.
  • The Download file from the gene page disease table now includes fields for Additional Implicated Gene ID, Additional Implicated Gene Symbol, Gene Association, Genetic Entity Association, Disease Qualifier, Evidence Code Abbreviation, Experimental Conditions, Genetic Modifier Relation, Genetic Modifier IDs, Genetic Modifier Names, Strain Background ID, Strain Background Name, Genetic Sex, Notes, Annotation Type, and Source URL.
  • The Source column entries now link back to their respective resource webpages.

Upcoming Conferences and Courses

  • 39th Small Meeting of Yeast Transporters and Energetics (SMYTE)
    • August 28 to September 01, 2024 -
    • University of York, York, United Kingdom

Happy Holidays from SGD!

SnowShmoo.png

We want to take this opportunity to wish you and your family, friends and lab mates the best during the upcoming holidays. Stanford University will be closed for two weeks starting December 21, reopening on January 4th, 2024. Although SGD staff members will be taking time off, the website will be up and running throughout the winter break, and we will resume responding to user requests and questions in the new year.

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