Aaron and the Hoskins Lab at UW Madison
@uwmadisonrna.bsky.social
📤 503
📥 374
📝 534
Interested in science, RNA, splicing, and single molecule biophysics.
Wow!!!!
add a skeleton here at some point
about 5 hours ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
Ruben Gonzalez
1 day ago
New Biochem Soc Trans review: eIF3 as a modular, central regulator of translation. Authored by
@nickide.bsky.social
and Colin Echeverría Aitken, this review integrates genetic, biochemical, and structural perspectives and highlights open mechanistic questions.
doi.org/10.1042/BST2...
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Can't wait for this meeting! Lots of exciting, macromolecular science lined up!
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1 day ago
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Aaron and the Hoskins Lab at UW Madison
Ruben Gonzalez
1 day ago
Slightly overdue article highlight! In PNAS, we use smFRET to reveal how polypeptide release factor 2 (RF2) undergoes a cascade of structural changes to catalyze polypeptide release during translation termination and ArfA-mediated ribosome rescue. 🧵⬇️
doi.org/10.1073/pnas...
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Missed this from
@daspliceisright.bsky.social
www.nature.com/articles/s41...
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KATMAP infers splicing factor activity and regulatory targets from knockdown data - Nature Biotechnology
A biophysical model uses knockdown or overexpression data to infer splicing factor activity.
https://www.nature.com/articles/s41587-025-02881-9
3 days ago
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Aaron and the Hoskins Lab at UW Madison
Alvaro Sanchez
4 days ago
Opportunity for scientists considering moving to Spain as tenured scientists! Happy to see openings in microbiology across the country (including at CNB which has incorporated fantastic micro eco/evo researchers lately) and functional & systems biology at IBFG
www.ciencia.gob.es/en/Convocato...
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Escala de Científicos Titulares de Organismos Públicos de Investigación
Escala de Científicos Titulares de Organismos Públicos de Investigación
https://www.ciencia.gob.es/en/Convocatorias/Empleo-Publico/2025/AL_ECTOPI_24_25.html
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Aaron and the Hoskins Lab at UW Madison
American Society for Biochemistry and Molecular Biology
4 days ago
Here’s a preview of some exciting events coming up at the 2026 ASBMB Annual Meeting!
www.asbmb.org/annual...
• Rapid Review: 5-minute manuscript feedback • Speaking Up, Making Change: science advocacy in action • Career & Education Fair: connect with academia, industry & more
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reposted by
Aaron and the Hoskins Lab at UW Madison
American Society for Biochemistry and Molecular Biology
5 days ago
There's still time to share your insights at #ASBMB26! Late-breaking abstract submission is open. Submit your abstract by Jan. 15 for the opportunity to present your research alongside other outstanding scientists who are driving research forward.
www.asbmb.org/annual...
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www.science.org/doi/10.1126/...
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Inherited resilience to clonal hematopoiesis by modifying stem cell RNA regulation
Somatic mutations that increase the fitness of hematopoietic stem cells (HSCs) drive their expansion in clonal hematopoiesis (CH) and predispose individuals to blood cancers. Population variation in t...
https://www.science.org/doi/10.1126/science.adx4174
5 days ago
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Following up on
@lucksmith.bsky.social
's post from Casa Bonita. Guess what we saw over the holidays! IFYKYK...
5 days ago
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Aaron and the Hoskins Lab at UW Madison
Michael Li (李之樸)
6 days ago
The final Calvin and Hobbes, which appeared in papers 30 years ago today.
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reposted by
Aaron and the Hoskins Lab at UW Madison
Kai Johnsson
6 days ago
A good end to 2025: rhodamine-binders for bioimaging in JACS:
pubs.acs.org/doi/10.1021/...
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Fast, Bright, and Reversible Fluorescent Labeling of Rhodamine-Binding Proteins
Rhodamine dyes conjugated to targeting ligands can yield exceptionally bright fluorescent probes for live-cell imaging. However, the limited permeability of such rhodamine derivatives restricts their ...
https://pubs.acs.org/doi/10.1021/jacs.5c18083
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Aaron and the Hoskins Lab at UW Madison
American Society for Biochemistry and Molecular Biology
7 days ago
A New Year's Eve countdown, rendered in 3D! ➡️ Learn more about cutting-edge protein research at
#ASBMB26
:
www.asbmb.org/annual-meeti...
. 🎨 Structures from
@rcsbpdb.bsky.social
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Aaron and the Hoskins Lab at UW Madison
Milo B. Fasken, Ph.D.
7 days ago
Exollent! Congrats!
#RNAExosome
#RNA
www.cell.com/cell-reports...
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The RNA exosome maintains cellular RNA homeostasis by controlling transcript abundance in the brain
Higginson et al. present a cell-type-resolved atlas of RNA exosome dysfunction in the Drosophila brain, showing that pathogenic Rrp40 mutations disrupt RNA surveillance and neuronal integrity. This re...
https://www.cell.com/cell-reports/fulltext/S2211-1247(25)01501-3?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2211124725015013%3Fshowall%3Dtrue#references
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Aaron and the Hoskins Lab at UW Madison
Needhi Bhalla 💅🏽
8 days ago
I had do this recently for a T32 RPPR for a grad student's paper in Cell Reports it is complete bullshit
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Thanks
@igorulitsky.bsky.social
for doing a huge amount of reviewing!
add a skeleton here at some point
8 days ago
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Aaron and the Hoskins Lab at UW Madison
Alejandro Montenegro
10 days ago
"Results from experiments with N = 4 or less are shown to be highly misleading (...). For a cut-off of 2-fold expression differences, we find an N of 6-7 mice is required to consistently decrease the false positive rate to below 50%, and the detection sensitivity to above 50%"
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Optimized murine sample sizes for RNA sequencing studies revealed from large scale comparative analysis - Nature Communications
Determining the appropriate sample size (N) for bulk RNA sequencing experiments is critical to ensure reliable results. Here the authors perform an unusually large N experiment (N = 30 per group), ana...
https://www.nature.com/articles/s41467-025-65022-5
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www.nature.com/articles/s41...
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NAC controls nascent chain fate through tunnel sensing and chaperone action - Nature
Nature - NAC controls nascent chain fate through tunnel sensing and chaperone action
https://www.nature.com/articles/s41586-025-10058-2
10 days ago
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www.biorxiv.org/content/10.6...
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Genomic stop codon scanning reveals quantitative principles of nonsense-mediated mRNA decay
Nonsense-mediated mRNA decay (NMD) degrades transcripts containing premature termination codons (PTCs), critically shaping the disease outcomes of protein-truncating variants. While existing NMD rules...
https://www.biorxiv.org/content/10.64898/2025.12.20.695734v1
14 days ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
Amy Weeks
17 days ago
New preprint! We found that the flavin-dependent halogenase RebH catalyzes sequence-tolerant Trp bromination in peptides 🧪https://www.biorxiv.org/content/10.64898/2025.12.17.694899v1
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www.biorxiv.org/content/10.6...
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TAD boundary architecture and gene activity are uncoupled
Topologically associating domains (TADs) are prominent features of genome organization. A proposed function of TADs is to contribute to gene regulation by promoting chromatin interactions within a TAD...
https://www.biorxiv.org/content/10.64898/2025.12.13.694158v1
19 days ago
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Chromatin buffers torsional stress during transcription | Science
www.science.org/doi/10.1126/...
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Chromatin buffers torsional stress during transcription
During eukaryotic transcription, Pol II must overcome nucleosome obstacles and, because of DNA’s helical structure, must also rotate relative to DNA, generating torsional stress. However, there is lim...
https://www.science.org/doi/10.1126/science.adv0134
19 days ago
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This is a very interesting reaction catalyzed by a radical SAM enzyme on the ribosome (plus uses methyl cobalamin). Hypoxia-induced ribosomal RNA modifications in the peptidyl-transferase center contribute to anaerobic growth of bacteria: Molecular Cell
www.cell.com/molecular-ce...
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Hypoxia-induced ribosomal RNA modifications in the peptidyl-transferase center contribute to anaerobic growth of bacteria
Ishiguro et al. identify stereoselective ribose-backbone methylations in the peptidyl-transferase center of E. coli ribosomes, installed by the cobalamin-dependent enzyme RlmX. These methylations, tog...
https://www.cell.com/molecular-cell/fulltext/S1097-2765%2825%2900935-9
19 days ago
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Awesome to see Ye's work from my lab featured on the cover of
@rnajournal.bsky.social
's January issue! It's an awesome story about 3' splice selection and how Prp8 and Prp22 may communicate with one another! The structure shown is
@maxewilkinson.bsky.social
's P complex (9DTR)
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21 days ago
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As an Indiana native the choice of pie in
@netflix.com
Stranger Things Season 5 episode 3 had me over the moon (it is by far my favorite), but Erika's secret ingredient (one of them at least) made me ecstatic... Literally had that conversation over Thanksgiving.
21 days ago
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This is my #1 favorite under-explored topic in cancer RNA research--how much do cancer cells rely on NMD?
www.biorxiv.org/content/10.6...
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Global changes in unproductive splicing and the NMD system efficiency in tumors
The Nonsense-Mediated Decay (NMD) pathway is a mRNA quality control mechanism, which not only degrades deleterious transcripts but also orchestrates a large number of post-transcriptional regulatory p...
https://www.biorxiv.org/content/10.64898/2025.12.10.692474v1
22 days ago
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This looks quite interesting. The vesicle angle is that U6 atac is unregulated in some cells, can be secreted, and then take up by other cells where it promotes minor intron splicing.
www.biorxiv.org/content/10.6...
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Blocking Minor Intron Splicing Disrupts DNA Repair and Overcomes Therapy Resistance in Prostate and Breast Cancer
The minor spliceosome (MiS) is a specialized RNA-processing machinery upregulated in cancer, promoting oncogene expression. We uncovered an adaptive resistance mechanism driven by secretion of extrace...
https://www.biorxiv.org/content/10.64898/2025.12.10.693392v1
22 days ago
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New paper on my favorite deadenylase, TOE1...
www.biorxiv.org/content/10.6...
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TOE1 influences canonical Wnt signalling in myeloid leukaemia cells through LEF-1 modulation and regulates the proliferation of haematopoietic cells through PAK2.
Acute myeloid leukaemia (AML) is an aggressive haematological malignancy characterised by the clonal proliferation of myeloid progenitor cells in the bone marrow and peripheral blood. Dysregulation of...
https://www.biorxiv.org/content/10.64898/2025.12.11.691106v1
22 days ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
American Society for Biochemistry and Molecular Biology
22 days ago
Be part of the conversation shaping the future at the 2026 ASBMB Annual Meeting! The late-breaking abstract deadline is Jan. 15. ✅Submit now to join an exciting program featuring the latest advances and trends in the molecular life sciences:
www.asbmb.org/annual-meeti...
.
#ASBMB26
#MakeItPossible
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Aaron and the Hoskins Lab at UW Madison
Matthew Taliaferro
22 days ago
Excited to share that this work is now published in its final form!
link.springer.com/article/10.1...
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Aaron and the Hoskins Lab at UW Madison
The Lewis Lab
23 days ago
Reevaluation of whether histones are asymmetrically segregated during asymmetric divisions of stem cells in Drosophila | PNAS
www.pnas.org/doi/10.1073/...
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Reevaluation of whether histones are asymmetrically segregated during asymmetric divisions of stem cells in Drosophila | PNAS
Recent work suggests that asymmetric segregation of preexisting and newly synthesized canonical histone 3.1 (H3.1), but not variant histone 3.3A (H...
https://www.pnas.org/doi/10.1073/pnas.2513015122
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Aaron and the Hoskins Lab at UW Madison
Alice Ting
27 days ago
New work describes our efforts to achieve CRISPR editing of the mitochondrial genome.
www.biorxiv.org/lookup/conte...
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Towards CRISPR-based editing of the mitochondrial genome in yeast
Mitochondria, which evolved from symbiotic bacteria, possess their own genomes (mtDNA) and support independent transcription and translation within the organelle. Given the essential role of mtDNA in ...
https://www.biorxiv.org/lookup/content/short/2025.12.09.693232v1
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Aaron and the Hoskins Lab at UW Madison
Eloise Beer Wells
27 days ago
*A new pre-print on increasing gene expression!* 🧬📈
doi.org/10.64898/202...
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Modulating splicing in five prime untranslated regions to treat rare haploinsufficient disease
Rare genetic disorders collectively impact over 300 million people worldwide, yet around 95% have no specific treatments. For the many rare disorders caused by haploinsufficiency, effective therapies ...
https://doi.org/10.64898/2025.12.07.692584
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Aaron and the Hoskins Lab at UW Madison
Karolin Luger
28 days ago
Confused by all the histones that are cropping up in organisms that are decidedly NOT eukaryotes? check out our review - fantastic work by team NucEvo in the
#Lugerlab
The Expanding Histone Universe: Histone-Based DNA Organization in Noneukaryotic Organisms -
www.annualreviews.org/content/jour...
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High-fidelity human chromosome transfer and elimination | Science
www.science.org/doi/10.1126/...
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High-fidelity human chromosome transfer and elimination
The synthesis of human genomes and other gigabase-scale genomes will require new strategies. Here, we realized key steps in our pipeline for building synthetic human chromosomes. We established: (i) t...
https://www.science.org/doi/10.1126/science.adv9797
29 days ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
Milo B. Fasken, Ph.D.
about 1 month ago
Nice Review
#EJC
www.nature.com/articles/s41...
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Gene regulation through exon junction complex modularity - Nature Structural & Molecular Biology
This Review summarizes the various functions of the exon junction complex in RNA splicing and beyond, to influence gene regulation.
https://www.nature.com/articles/s41594-025-01724-0
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Really interesting paper from David Stanek's group. R. humris doesn't have an apparent U1 snRNA, Snu66, OR SF3B1?!?!?! If they are present, the sequence divergence may be really interesting.
rnajournal.cshlp.org/content/31/1...
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Splice site diversity and abundance of noncanonical introns in diplonemids (Diplonemea, Euglenozoa)
A monthly journal publishing high-quality, peer-reviewed research on all topics related to RNA and its metabolism in all organisms
https://rnajournal.cshlp.org/content/31/12/1826
about 1 month ago
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Neat paper on wave patterns in bacterial colonies from the Shaevitz lab
www.biorxiv.org/content/10.1...
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Active surface waves drive rippling in Myxococcus xanthus colonies
During periods of predation or starvation, populations of the gliding bacterium Myxococcus xan-thus self-organize into striking wave-like structures termed ripples. This phenomenon was thought to aris...
https://www.biorxiv.org/content/10.1101/2025.11.28.691037v1.full.pdf+html
about 1 month ago
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New from Nav Toor's group. Take a look at Figure 8!
www.biorxiv.org/content/10.1...
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Structural evidence for metal ion catalysis in the ribosome
Ribosomes synthesize proteins with an RNA-only active site across all kingdoms of life. Yet, despite decades of high-resolution ribosome structures, the precise catalytic mechanism has remained elusiv...
https://www.biorxiv.org/content/10.1101/2025.05.16.654626v2
about 1 month ago
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Awesome to see this!
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about 1 month ago
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This is a neat paper. Especially liked the use of fluoro nucleotides. The specificity and structure of DNA cross-linking by the gut bacterial genotoxin colibactin | Science
www.science.org/doi/10.1126/...
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The specificity and structure of DNA cross-linking by the gut bacterial genotoxin colibactin
Accumulating evidence has connected the chemically unstable, DNA-damaging gut bacterial natural product colibactin to colorectal cancer, including the identification of mutational signatures that are ...
https://www.science.org/doi/10.1126/science.ady3571
about 1 month ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
Trends in Biochemical Sciences
about 1 month ago
📢 Our December issue is now online! Access the full issue 👉
www.cell.com/trends/bioch...
🎨 The cover brings warm, summertime vibes ☀️ and highlights a Feature Review on
#AromaticAminoAcid
biosynthesis in 🌱 from Jorge El-Azaz and
@hiroshi-maeda.bsky.social
. Cover art credit to Tae Park. (1/n)
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Can't wait for this one! Eric
@dnacurtain.bsky.social
is one of my favorite scientists and I haven't seen him in ages :)
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about 1 month ago
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Super nice
@uwbiochem.bsky.social
@bmolchem.bsky.social
seminar yesterday from Brandt Eichman highlighting work found in this preprint:
pubmed.ncbi.nlm.nih.gov/41256537/
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Structural basis for fork reversal and RAD51 regulation by the SCF ubiquitin ligase complex of F-box helicase 1 - PubMed
Replication fork reversal helps maintain genomic stability during replication stress. F-box helicase 1 (FBH1) catalyzes fork reversal and is an SCF E3 ubiquitin ligase that limits RAD51 association with chromatin. Here, we show that preferential binding of SCF <sup>FBH1</sup> to the lagging strand t …
https://pubmed.ncbi.nlm.nih.gov/41256537/
about 1 month ago
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pubmed.ncbi.nlm.nih.gov/41315142/
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Decoding retinitis pigmentosa: molecular targets and therapy with focus on pre-mRNA splicing - PubMed
Retinitis pigmentosa (RP) is the most common cause of inherited blindness, with mutations in splicing factors playing a significant role in its pathogenesis. Many scientists have been puzzled by the fact that mutations in several key spliceosomal components have such a confined effect on the retina. …
https://pubmed.ncbi.nlm.nih.gov/41315142/
about 1 month ago
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New from the Butcher Lab—defining the RNA binding mechanism of TDP-43. Happy to have played a small part in this amazing work!
www.biorxiv.org/content/10.1...
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TDP-43 controls RNA structure through high affinity lattice interactions
TDP-43 is an RNA binding protein implicated in neurodegenerative disease. TDP-43 binds to GU dinucleotide repeats, which are highly abundant sequences in human RNA. Here we show TDP- 43 has one of the...
https://www.biorxiv.org/content/10.1101/2025.11.26.690829v1
about 1 month ago
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From
@kylecottrell.bsky.social
lab
rnajournal.cshlp.org/content/31/1...
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ZYS-1 is not an ADAR1 inhibitor
A monthly journal publishing high-quality, peer-reviewed research on all topics related to RNA and its metabolism in all organisms
https://rnajournal.cshlp.org/content/31/12/1703.full
about 1 month ago
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New from Greg’s lab at New England Biolabs on phage genome assembly.
www.pnas.org/doi/abs/10.1...
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PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
https://www.pnas.org/doi/abs/10.1073/pnas.2523871122
about 1 month ago
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As an experiment to combat/come-to-terms-with AI use in homework assignments, I'm incorporating arts and crafts. Here a student used Lucky Charms for an exercise on the prochirality of citrate.
about 1 month ago
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reposted by
Aaron and the Hoskins Lab at UW Madison
Carolyn Bertozzi
about 2 months ago
Fantastic opportunity for undergraduates pursuing summer research experience!
@hhmi.org
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