Jeanine Gezelle
@jgezelle.bsky.social
190 followers 420 following 8 posts
Columbia PhD candidate studying viral RNA structure and degradation
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jgezelle.bsky.social
Our study from the Steckelberg lab is out now in @narjournal.bsky.social !! We dove into a new nuclease-blocking viral #RNA structure important for viral infection, which provided evidence of similar structure-based strategies across diverse viral families. academic.oup.com/nar/article/...
A conserved viral RNA fold enables nuclease resistance across kingdoms of life
Abstract. Viral exoribonuclease-resistant RNA (xrRNA) structures block cellular nucleases to produce subgenomic viral RNAs during infection. High sequence
academic.oup.com
Reposted by Jeanine Gezelle
panos-poulis.bsky.social
cshperspectives.cshlp.org/content/earl...
Review alert! In our latest review, we dissect the mechanistic structural and kinetic principles that govern -1 ribosome frameshifting and discuss how different flavours arise from distinct molecular pathways, yet converge on shared mechanistic features.
Mechanisms and Determinants of −1 Ribosome Frameshifting and Bypassing
A new type of review journal, featuring comprehensive collections of expert review articles on important topics in the molecular life sciences
cshperspectives.cshlp.org
Reposted by Jeanine Gezelle
science.org
NSF today released instructions for the next round of applicants to its Graduate Research Fellowship Program. A key group—second-year Ph.D. students—is no longer eligible, and students who are still able to apply will face an unusually narrow timeframe. https://scim.ag/3KlQkQk
‘Completely shattered.’ Changes to NSF’s graduate student fellowship spur outcry
The announcement comes months later than usual, leaving many would-be applicants stranded
www.science.org
Reposted by Jeanine Gezelle
drugmonkey.bsky.social
Please consider signing this letter in support of the NSF graduate fellowship program. It is an important program for training scientists, particularly for disciplines that are not well-supported by research grants.
jasonwilliamsny.bsky.social
Please share with anyone who cares about NSF support for graduate students and take 30 seconds to sign and leave a comment.

The deadline for the 2025 Graduate Research Fellowship Program is about one month away and literally no one can apply. #NSFGRFP

jasonjwilliamsny.github.io/grfp2025/
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
jasonjwilliamsny.github.io
Reposted by Jeanine Gezelle
jasonwilliamsny.bsky.social
Please share with anyone who cares about NSF support for graduate students and take 30 seconds to sign and leave a comment.

The deadline for the 2025 Graduate Research Fellowship Program is about one month away and literally no one can apply. #NSFGRFP

jasonjwilliamsny.github.io/grfp2025/
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
jasonjwilliamsny.github.io
Reposted by Jeanine Gezelle
dialecticbio.bsky.social
Been thinking about creating a collection of good protein structure figures, as inspiration for my own work.

#1 www.nature.com/articles/s41...
jgezelle.bsky.social
Thank you to my PhD mentor @lenasteckelberg.bsky.social and all authors who made the work possible: @sophiekorn.bsky.social, Jayden McDonald, Zhen Gong, Anna Erickson, Chih-Hung Huang, Feiyue Yang, Matt Cronin, Yen-Wen Kuo, and Brian Wimberly
jgezelle.bsky.social
Our study from the Steckelberg lab is out now in @narjournal.bsky.social !! We dove into a new nuclease-blocking viral #RNA structure important for viral infection, which provided evidence of similar structure-based strategies across diverse viral families. academic.oup.com/nar/article/...
A conserved viral RNA fold enables nuclease resistance across kingdoms of life
Abstract. Viral exoribonuclease-resistant RNA (xrRNA) structures block cellular nucleases to produce subgenomic viral RNAs during infection. High sequence
academic.oup.com
Reposted by Jeanine Gezelle
christinemayr.bsky.social
New paper:
More than 2700 human 3′UTRs are highly conserved. These 3′UTRs are essential components in mRNA templates, as their deletion decreases protein activity without changing protein abundance. Highly conserved 3′UTRs help the folding of proteins with long IDRs.

www.biorxiv.org/content/10.1...
mRNA 3′UTRs chaperone intrinsically disordered regions to control protein activity
More than 2,700 human mRNA 3′UTRs have hundreds of highly conserved (HC) nucleotides, but their biological roles are unclear. Here, we show that mRNAs with HC 3′UTRs mostly encode proteins with long intrinsically disordered regions (IDRs), including MYC, UTX, and JMJD3. These proteins are only fully active when translated from mRNA templates that include their 3′UTRs, raising the possibility of functional interactions between 3′UTRs and IDRs. Rather than affecting protein abundance or localization, we find that HC 3′UTRs control transcriptional or histone demethylase activity through co-translationally determined protein oligomerization states that are kinetically stable. 3′UTR-dependent changes in protein folding require mRNA-IDR interactions, suggesting that mRNAs act as IDR chaperones. These mRNAs are multivalent, a biophysical RNA feature that enables their translation in network-like condensates, which provide favorable folding environments for proteins with long IDRs. These data indicate that the coding sequence is insufficient for the biogenesis of biologically active conformations of IDR-containing proteins and that RNA can catalyze protein folding. ### Competing Interest Statement The authors have declared no competing interest. Pershing Square Foundation, https://ror.org/04tce9s05 G. Harold & Leila Y. Mathers Foundation National Institutes of Health, DP1GM123454, R35GM144046 Memorial Sloan Kettering Cancer Center, https://ror.org/02yrq0923, P30 CA008748
www.biorxiv.org
Reposted by Jeanine Gezelle
scurry.bsky.social
“Musk’s casualties are not only in Washington but all over the world, in refugee camps and scientific labs whose funding was abruptly cut off, in national parks you can’t get into this summer, and in communities across the country where polluters will no longer be prosecuted.”
newyorker.com
Elon Musk promised to slash the U.S. budget. But his actions may cost the government as much as $135 billion in this fiscal year alone, according to recent estimates.
Elon Musk Didn’t Blow Up Washington, But He Left Plenty of Damage Behind
The obits for the tech mogul’s time at the Department of Government Efficiency are, justifiably, vicious.
www.newyorker.com
Reposted by Jeanine Gezelle
Reposted by Jeanine Gezelle
kienbeck.bsky.social
Looking forward to the 30th Annual Meeting of The @rnasociety.bsky.social starting tomorrow! Join Concurrent Session 15 on Saturday at 3:30 PM to hear my talk on Theta Ribozymes!
Reposted by Jeanine Gezelle
rachael-kretsch.bsky.social
We each analysed the predictions for the target we expirementally determined, resulting in 12 excellent chapters:
(1) @jgezelle.bsky.social and @lenasteckelberg.bsky.social ‪‪discuss a xrRNA
(2) Manju Ojha and Deepak Koirala discuss HIV RRE SLII
Reposted by Jeanine Gezelle
rachael-kretsch.bsky.social
Nucleic acid structural biologists expose that many CASP16 predictions, even ones obtaining high scores by CASP metrics, are inaccurate in the most functionally relevant regions! Read more insights on functionally relevant features by the expert structure determiners (doi.org/10.1101/2025...).
Functional relevance of CASP16 nucleic acid predictions as evaluated by structure providers
Accurate biomolecular structure prediction enables the prediction of mutational effects, the speculation of function based on predicted structural homology, the analysis of ligand binding modes, exper...
doi.org
Reposted by Jeanine Gezelle
Reposted by Jeanine Gezelle
darrigomelanie.bsky.social
ICE can enter anyone’s home, and abduct and deport them to a foreign prison indefinitely because the DOJ says they can ignore the 4th, 5th and 15th amendments.

If there’s no due process or protections against illegal search and seizures, none of us are safe.
jgezelle.bsky.social
Hey #RNAsky check out our new preprint! we solved a new nuclease-blocking viral #RNA structure and found some illuminating similarities across diverse viral families. Thread below ⬇️ biorxiv.org/content/10.110…