Elly Poretsky

@eporetsky@genomic.social
274 Followers
595 Following
831 Posts
USDA Postdoc in the Bay Area • Plant Biologist • Bioinformatics • Genetics • Creator of www.plantapp.org • He/Him
Websitehttps://eporetsky.github.io/
PlantApphttp://www.plantapp.org/
Codehttps://github.com/eporetsky
LinkedInhttps://www.linkedin.com/in/eporetsky

I've been seeing a few #transcriptome wide association studies (TWAS) papers lately. This is another example, from #sorghum, combining GWAS and TWAS to study flowering time. Bonus - I imagine that there's a lot more value that can be gained from the 822 #RNAseq samples made publicly available

https://www.biorxiv.org/content/10.1101/2024.12.12.628249v1.full.pdf

#PlantScience #PlantDevelopment #Sorghum

The two #systemin #peptide #receptors in tomatoes have opposite functions. While SYR1 activates systemin-induced #immune responses, SYR2 acts as an antagonist. Wounding preferentially induces the expression of SYR2 that attenuates immune responses by outcompeting SYR1 for binding with the co-receptor SERK3a

https://www.cell.com/action/showPdf?pii=S1534-5807%2824%2900670-1

#PlantScience #PlantImmunity #Tomato

Very interesting study using #arabidopsis showing commensal #rhizobacteria secrete a subtilase that suppresses plant #immunity by cleaving #peptide elicitors

https://www.cell.com/cell-reports/fulltext/S2211-1247(24)01414-1

Rhizobium rhizogenes A4-derived strains mediate stronger and faster transient
gene expression in Nicotiana benthamiana and other solanaceous plants compared to widely used agrobacteria strains. Brings me back memories of trying to transiently express a protein in tomato using wild agrobacteria strains https://www.biorxiv.org/content/10.1101/2024.11.30.626145v1?rss=1
First time commuting to a conference by kayak #nbpy #python

The KARRIKIN INSENSITIVE 2 (KAI2) #receptor in #petunias can be activated by the sesquiterpenoid germacrene D, a volatile signal that may coordinate flower development

https://www.science.org/doi/abs/10.1126/science.adl4685

Plantae summary: https://plantae.org/volatile-communication-in-plants-relies-on-a-kai2-mediated-signaling-pathway/

AlphaFold3 is now available and looks like it can handle all molecule interactions!

Webserver: https://golgi.sandbox.google.com/about
Paper: https://www.nature.com/articles/s41586-024-07487-w

#AlphaFold #AlphaFold3 #ProteinStructure

AlphaFold Server

AlphaFold Server - powered by AlphaFold 3 - provides highly accurate structure predictions for how proteins interact with other molecules, like DNA, RNA and more.

Fun #SynBio paper from the Shih lab - Engineered #broccoli 🥦 with thermostable glycosyl hydrolases (myrosinases) retain more hydrolysis products beneficial to human #health after #cooking

https://pubs.acs.org/doi/full/10.1021/acssynbio.3c00676

Perception of volatile organic compounds (#VOCs) from wounded #arabidopsis plants identifies two green leaf volatiles (#GLVs), (Z)-3-hexenal and (E)-2-hexenal. Perception starts in #guard cells and subsequently in #mesophyll cells, triggering the expression of biotic and abiotic stress-responsive genes in a calcium-dependent manner.

https://www.nature.com/articles/s41467-023-41589-9

Green leaf volatile sensory calcium transduction in Arabidopsis - Nature Communications

Plants sense volatiles emitted by injured neighboring plants and elicit defense responses to external threats. Here, the authors show that Arabidopsis leaves uptake two green leaf volatiles via stomata and trigger cytosolic Ca2+ defense signaling.

Nature

Missed this #LigandMPNN preprint from a month ago from the Baker lab. LigandMPNN is a protein sequence #design that works with non-protein molecules such as small molecules, nucleotides and metals

https://www.biorxiv.org/content/10.1101/2023.12.22.573103v1

Run it on Colab - https://colab.research.google.com/github/ullahsamee/ligandMPNN_Colab/blob/main/LigandMPNN_Colab.ipynb