Gordon Simpson

@ggsimpsonrna.bsky.social

Professor of Molecular Genetics, School of Life Sciences, University of Dundee, Scotland. RNA. https://www.dundee.ac.uk/people/gordon-simpson

How do cells sort which RNAs to keep or destroy? New preprint from THJ, Brenneke and Plaschka labs shows that export and decay machineries (TREX2/PAXT) both recognise UAP56-bound RNAs. Whether they’re exported or degraded depends on where in the nucleus this happens. www.biorxiv.org/content/10.1...

Molecular basis of polyadenylated RNA fate determination in the nucleus

Eukaryotic genomes generate a plethora of polyadenylated (pA+) RNAs, that are packaged into ribonucleoprotein particles (RNPs). To ensure faithful gene expression, functional pA+ RNPs, including prote...

biorxiv.org

Post-transcriptional #GeneRegulation through #m6A deposition is dysregulated in many diseases. Samie Jaffrey &co investigate why the m6A writer complex requires multiple subunits and what roles its individual proteins might have in m6A regulation. 🧪 plos.io/3VjfjWI

Why does the m6A writer complex require so many proteins?

Post-transcriptional gene regulation through m6A deposition is dysregulated in many diseases and is catalyzed by a multi-protein writer complex. This Unsolved Mystery investigates why the writer compl...

plos.io

Many conserved exons in the heart and brain utilize weak 5 ′ splice sites, yet they are accurately spliced. But how? We show that splicing fidelity is actively enforced through a QKI-U6 checkpoint at the U1→U6 handover in essential cardiac genes during organogenesis. www.biorxiv.org/content/10.1...

QKI ensures splicing fidelity during cardiogenesis by engaging the U6 tri-snRNP to activate splicing at weak 5ʹ splice sites

During organogenesis, precise pre-mRNA splicing is essential to assemble tissue architecture. Many developmentally essential exons bear weak 5'splice sites (5'SS) yet are spliced with high precision, ...

biorxiv.org

This is an amazing opportunity to join the plant sciences faculty in the Oxford Department of Biology! I am so impressed with the quality and collegiality of these colleagues. I’m not on the committee, but I’m happy to answer questions as I can.

Lars Østergaard@larsostergaard.bsky.social · last yr.

👉 my.corehr.com/pls/uoxrecru... Join us and be part of shaping the future of #plantscience at Oxford as we move to the new Life and Mind Building lifeandmind.web.ox.ac.uk/home (recognised for its potential to change the World edition.cnn.com/2025/01/01/s...) @biology.ox.ac.uk www.biology.ox.ac.uk

Happy to share our latest preprint doing low cell number (mini-bulk) and single cell #proteomics on tumour associated neutrophils from human glioblastoma where we find multiple functional states that would be invisible to scRNAseq, some showing pro-tumoural states with potential therapeutic value

Single cell proteomic analysis defines discrete neutrophil functional states in human glioblastoma

Neutrophils are vital innate immune cells shown to infiltrate glioblastomas, however we currently lack the molecular understanding of their functional states within the tumour niche. Neutrophils are k...

biorxiv.org

Finally out! I’m thrilled to share our new paper (Wolin et al., Cell 2025). This paper describes SPIDR, a high-throughput method for mapping RBP binding sites. By combining #SPIDR with #cryoEM, we identified the exact binding site of LARP1 within the #mRNA channel of the 40S ribosomal subunit.

New preprint! We solve a mystery you didn't know existed. Mitotic cells lack new transcription but require ongoing translation. Interphase mRNA half life is only 2-4 hrs. So how do cells arrest in mitosis for hours without depleting their transcriptomes? www.biorxiv.org/content/10.1...

Global inhibition of deadenylation stabilizes the transcriptome in mitotic cells

In the presence of cell division errors, mammalian cells can pause in mitosis for tens of hours with little to no transcription, while still requiring continued translation for viability. These unique...

biorxiv.org