@jimmy-ly.bsky.social
Reposted
From an accidental discovery of hidden biology to a new framework to understanding and diagnosing rare disease. Thrilled to share the most recent work from our lab and the amazing Jimmy Ly.
wi.mit.edu/news/alterna...
wi.mit.edu/news/alterna...
Alternate proteins from the same gene contribute differently to health and rare disease | Whitehead Institute
Iain Cheeseman and colleagues reveal the underappreciated role of single genes producing multiple proteins in atypical presentations of rare disease, and present case studies of affected patients thro...
wi.mit.edu
November 7, 2025 at 4:14 PM
From an accidental discovery of hidden biology to a new framework to understanding and diagnosing rare disease. Thrilled to share the most recent work from our lab and the amazing Jimmy Ly.
wi.mit.edu/news/alterna...
wi.mit.edu/news/alterna...
Reposted
Check out the latest work from our lab, led by Arash Latifkar @ara-latifkar.bsky.social , www.biorxiv.org/content/10.1...
mRNA poly(A)-tail length is a battleground for coronavirus–host competition
Most eukaryotic mRNAs contain a poly(A) tail, which in post-embryonic cells enhances their stability. Many cytoplasmic RNA viruses also harbor poly(A) tails on their genomic RNA and mRNAs. Here, we re...
www.biorxiv.org
October 13, 2025 at 7:44 PM
Check out the latest work from our lab, led by Arash Latifkar @ara-latifkar.bsky.social , www.biorxiv.org/content/10.1...
Reposted
I am excited to share my graduate work in the Sabatini and @bartellab.bsky.social labs. Since their discovery, we have known lysosomes possess RNase activity; however, their substrates were not known. Surprisingly we find specific RNAs are targeted for degradation! www.biorxiv.org/content/10.1...
Lysosomal RNA profiling reveals targeting of specific types of RNAs for degradation
Autophagy targets a wide variety of substrates for degradation within lysosomes. While lysosomes are known to possess RNase activity, the role of lysosomal RNA degradation in post-transcriptional gene...
www.biorxiv.org
September 9, 2025 at 9:53 PM
I am excited to share my graduate work in the Sabatini and @bartellab.bsky.social labs. Since their discovery, we have known lysosomes possess RNase activity; however, their substrates were not known. Surprisingly we find specific RNAs are targeted for degradation! www.biorxiv.org/content/10.1...
Reposted
Congratulations to @jimmy-ly.bsky.social on this well-deserved recognition!
His research looking at variants of known proteins offers new insight into rare genetic disorders.
tinyurl.com/5xfc3feh
His research looking at variants of known proteins offers new insight into rare genetic disorders.
tinyurl.com/5xfc3feh
Jimmy Ly (@jimmy-ly.bsky.social) from the lab of Iain Cheeseman, Massachusetts Institute of Technology / Whitehead Institute (@whiteheadinstitute.bsky.social). 👏🏾 4/
September 10, 2025 at 7:43 PM
Congratulations to @jimmy-ly.bsky.social on this well-deserved recognition!
His research looking at variants of known proteins offers new insight into rare genetic disorders.
tinyurl.com/5xfc3feh
His research looking at variants of known proteins offers new insight into rare genetic disorders.
tinyurl.com/5xfc3feh
Honoured to receive the IMP Birnstiel Award this year! So grateful to my mentor @iaincheeseman.bsky.social for all of his help and encouragement!! Very thankful to the @whiteheadinstitute.bsky.social community and the wonderful collaborations within the institute—especially @bartellab.bsky.social 😊🥳
Exciting news! We're thrilled to announce the six outstanding laureates of the International Birnstiel Award for Doctoral Studies in Molecular Life Sciences 2025!
🏆Congratulations to all awardees and honourable mentions! 🎉 1/ ➡️ www.imp.ac.at/news/article...
🏆Congratulations to all awardees and honourable mentions! 🎉 1/ ➡️ www.imp.ac.at/news/article...
September 10, 2025 at 9:29 PM
Honoured to receive the IMP Birnstiel Award this year! So grateful to my mentor @iaincheeseman.bsky.social for all of his help and encouragement!! Very thankful to the @whiteheadinstitute.bsky.social community and the wonderful collaborations within the institute—especially @bartellab.bsky.social 😊🥳
Reposted
New preprint! Graduate student Océane Marescal leverages quiescence - proliferative hibernation - to reveal unexpected dynamics for “constitutively”-localized centromere proteins. To understand the logic of cell division, you need to consider non-dividing cells.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
The dynamics of centromere assembly and disassembly during quiescence
Quiescence is a state in which cells undergo a prolonged proliferative arrest while maintaining their capacity to reenter the cell cycle. Here, we analyze entry and exit from quiescence, focusing on h...
www.biorxiv.org
September 9, 2025 at 11:14 AM
New preprint! Graduate student Océane Marescal leverages quiescence - proliferative hibernation - to reveal unexpected dynamics for “constitutively”-localized centromere proteins. To understand the logic of cell division, you need to consider non-dividing cells.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
I am incredibly grateful and honored to be recognized with the Keith Porter Prize 🥹🥳 — thank you, @ascbiology.bsky.social and @iaincheeseman.bsky.social for being the best mentor!! Congratulations to the other awardees and I am looking forward to meeting everyone in Philly
Meet the 2025 ASCB Award Winners—trailblazing scientists honored for research, mentoring, education, and innovation. Celebrate excellence across all career stages in cell biology. Read more: www.ascb.org/society-news...
August 5, 2025 at 2:23 PM
I am incredibly grateful and honored to be recognized with the Keith Porter Prize 🥹🥳 — thank you, @ascbiology.bsky.social and @iaincheeseman.bsky.social for being the best mentor!! Congratulations to the other awardees and I am looking forward to meeting everyone in Philly
Reposted
Check out the latest study from our lab, led by Coffee Xiang (@coffeebond007.bsky.social) www.nature.com/articles/s41... (1/2)
PAL-AI reveals genetic determinants that control poly(A)-tail length during oocyte maturation, with relevance to human fertility - Nature Communications
Gene regulation in oocytes relies heavily on poly(A) tail-length changes. Here, the authors develop PAL-AI, a neural network model that predicts tail-length changes, identifies regulatory motifs, and ...
www.nature.com
August 2, 2025 at 3:00 PM
Check out the latest study from our lab, led by Coffee Xiang (@coffeebond007.bsky.social) www.nature.com/articles/s41... (1/2)
Beautiful work by Katya Khalizeva from @iaincheeseman.bsky.social lab, uncovering a surprising feedback loop to globally suppress mRNA decay during mitosis! This helps explain how cells maintain their transcriptome during a mitotic arrest without new transcription!
www.biorxiv.org/content/10.1...
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...
www.biorxiv.org
July 23, 2025 at 12:57 PM
Beautiful work by Katya Khalizeva from @iaincheeseman.bsky.social lab, uncovering a surprising feedback loop to globally suppress mRNA decay during mitosis! This helps explain how cells maintain their transcriptome during a mitotic arrest without new transcription!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted
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...
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...
www.biorxiv.org
July 23, 2025 at 10:57 AM
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...
www.biorxiv.org/content/10.1...
Reposted
Optical Pooled Screening has transformed large-scale cell biology, but lacks robust end-to-end computational strategies to process these Tb-sized datasets. New from Di Bernardo et al (@mat10d.bsky.social):
Brieflow. A game changer for OPS + new biological insights
www.biorxiv.org/content/10.1...
Brieflow. A game changer for OPS + new biological insights
www.biorxiv.org/content/10.1...
www.biorxiv.org
May 27, 2025 at 12:22 PM
Optical Pooled Screening has transformed large-scale cell biology, but lacks robust end-to-end computational strategies to process these Tb-sized datasets. New from Di Bernardo et al (@mat10d.bsky.social):
Brieflow. A game changer for OPS + new biological insights
www.biorxiv.org/content/10.1...
Brieflow. A game changer for OPS + new biological insights
www.biorxiv.org/content/10.1...
Reposted
New preprint drop! Check out work from @jimmy-ly.bsky.social et al for how protein isoforms generated by alternate translation initiation create dual localization, contribute to mitochondrial function, and are mutated in disease. "Blue-tutorial" thread below.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
March 28, 2025 at 10:41 AM
New preprint drop! Check out work from @jimmy-ly.bsky.social et al for how protein isoforms generated by alternate translation initiation create dual localization, contribute to mitochondrial function, and are mutated in disease. "Blue-tutorial" thread below.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Excited to share my work with @iaincheeseman.bsky.social! We show that alternative translation produces differentially localized protein variants mutated in rare human diseases. This was a fun collaboration, blending cell biology with evolution and clinical genetics!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Alternative start codon selection shapes mitochondrial function during evolution, homeostasis, and disease
Mitochondrial endosymbiosis was a pivotal event in eukaryotic evolution, requiring core proteins to adapt to function both within the mitochondria and in the host cell. Here, we systematically profile...
www.biorxiv.org
March 28, 2025 at 11:34 AM
Excited to share my work with @iaincheeseman.bsky.social! We show that alternative translation produces differentially localized protein variants mutated in rare human diseases. This was a fun collaboration, blending cell biology with evolution and clinical genetics!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted
Countdown to an epic new pre-print.
Mitochondria are cells within our cells. They need the same core activities - replication, transcription, translation. How do cells enable these diverse activities in both compartments? We uncover an unexpected + broad strategy with ancient origins. Stay tuned!
Mitochondria are cells within our cells. They need the same core activities - replication, transcription, translation. How do cells enable these diverse activities in both compartments? We uncover an unexpected + broad strategy with ancient origins. Stay tuned!
March 25, 2025 at 10:35 AM
Countdown to an epic new pre-print.
Mitochondria are cells within our cells. They need the same core activities - replication, transcription, translation. How do cells enable these diverse activities in both compartments? We uncover an unexpected + broad strategy with ancient origins. Stay tuned!
Mitochondria are cells within our cells. They need the same core activities - replication, transcription, translation. How do cells enable these diverse activities in both compartments? We uncover an unexpected + broad strategy with ancient origins. Stay tuned!