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Tamanash Bhattacharya

@tamanash

Helen Hay Whitney Foundation fellow in Harmit Malik lab at Fred Hutch | I study evolutionary adaptation | http://tamanashbhattacharya.wordpress.com

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30.10.2023
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Latest posts by Tamanash Bhattacharya @tamanash

Rebecca is starting her lab as a UCSF Sandler fellow in August 2026; folks at #Dros26 interested in host-parasitoid interactions should try to catch her at the meeting to find out about available positions: www.tarnopollab.org/people

05.03.2026 17:30 πŸ‘ 33 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0
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Magnesium depletion by Candida albicans unleashes two unusual modes of colistin resistance in Pseudomonas aeruginosa with different fitness costs Bacterial resistance to the vital last-resort antibiotic colistin is an increasing challenge. This study shows that magnesium sequestration by C. albicans enables P. aeruginosa to evolve much higher…

In new research, Yu-Ying Phoebe Hsieh, Ian O’Keefe, Ajai Dandekar, Harmit Malik &co reveal how magnesium sequestration by C. albicans enables P. aeruginosa to evolve much higher levels of resistance to colistin (a last-resort #antibiotic).
πŸ§ͺ#MicroSky

04.03.2026 13:55 πŸ‘ 11 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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With Eugene Koonin, we propose a concept of β€œthe selfish ribosome”, under which evolution of life is viewed as a ribosomal takeover, where the ribosome evolved to consume most of the cell’s resources, while other cellular componentry ensures the propagation of the ribosome. arxiv.org/abs/2602.23268

03.03.2026 08:58 πŸ‘ 223 πŸ” 96 πŸ’¬ 5 πŸ“Œ 13
An intrinsically disordered region mediates RNA-binding selectivity and cellular activities of LARP6 - Nature Communications LARP6 is an EMT-associated RNA-binding protein with diverse RNA targets. Here, the authors show that the N-terminal disordered region of LARP6 promotes RNA-binding selectivity by modulating the adjace...

πŸŽ‰Proud to present our latest paper, out now in Nature Communications: www.nature.com/articles/s41...

RNA Binding Proteins (RBPs) are often full of intrinsically disordered regions (IDRs), but what these regions do during RNA recognition is often unclear. 1/10
#RNA #IDR #RBP

21.02.2026 23:31 πŸ‘ 75 πŸ” 33 πŸ’¬ 1 πŸ“Œ 4

Integrase anchors viral RNA to the HIV-1 capsid interior pubmed.ncbi.nlm.nih.gov/41708858/ #cryoEM

19.02.2026 13:39 πŸ‘ 9 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
NOT-OD-26-020: Notice of Temporary Extension to Early-Stage Investigator (ESI) Eligibility Period NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Notice of Temporary Extension to Early-Stage Investigator (ESI) Eligibility Period NOT-OD-26-020. OD

🧡Good news out of #NIH today.
(1) NIH is extending #ESI and #K99/R00 eligibility to accommodate researchers whose eligibility would have ended during the previous shutdown. Take a look at NOT-OD-26-020. If your ESI status would have ended in 2025, you get an automatic extension through 2026/03/31.

30.01.2026 19:34 πŸ‘ 63 πŸ” 61 πŸ’¬ 1 πŸ“Œ 1
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A small polymerase ribozyme that can synthesize itself and its complementary strand The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...

How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller?

Excited to share our latest work in @science.org on a new small polymerase.
1/n

13.02.2026 11:42 πŸ‘ 498 πŸ” 210 πŸ’¬ 10 πŸ“Œ 28

New preprint from our lab led by fantastic graduate student @titas10.bsky.social, in which we retrace the emergence of antimicrobial function in the mammalian protein lactoferrin.

12.02.2026 18:04 πŸ‘ 15 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0
The visualization of two bacterial genomes, of 50 and 52kb, representing independent instances of extreme genomic reduction in ancient heritable endosymbionts of planthoppers.

The visualization of two bacterial genomes, of 50 and 52kb, representing independent instances of extreme genomic reduction in ancient heritable endosymbionts of planthoppers.

Our new paper in @natcomms.nature.com is now online-early!

We describe independent evolution of bacterial genomes of only ~50–52 kb β€” the smallest known outside cellular organelles β€” revealing striking convergence toward minimal gene sets.

πŸ”— doi.org/10.1038/s414...

11.02.2026 11:15 πŸ‘ 79 πŸ” 29 πŸ’¬ 5 πŸ“Œ 6
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darth vader in a dark room with the words if you only knew the power of the dark side ALT: darth vader in a dark room with the words if you only knew the power of the dark side
09.02.2026 03:26 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Excited to share our work on #AncientRNA from alcohol-preserved lungs, recovering the oldest human RNA virus genome (an 18th-century rhinovirus). Our study shows that viral RNA remnants persist in centuries-old tissue, opening new ways to study virus evolution and historical disease #Paleovirology🫁🦠

31.01.2026 00:57 πŸ‘ 71 πŸ” 21 πŸ’¬ 1 πŸ“Œ 5
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Cryo-electron tomography reveals coupled flavivirus replication, budding and maturation - Nature Communications In this study, Dahmane et al use a method called cryo-electron tomography to uncover new details of how tick-borne flaviviruses transform cells into virus factories.

I am super happy to share this paper in its final form. We used FIB milling to "dig in to" cell lines and mouse brains infected with tick-borne flaviviruses, followed by cryo-ET to study the virus replication. It's open access, so have a look!
#virology #teamtomo
www.nature.com/articles/s41...

23.01.2026 16:47 πŸ‘ 104 πŸ” 31 πŸ’¬ 1 πŸ“Œ 2
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a man in a suit and tie with a microphone that says it 's pretty simple ALT: a man in a suit and tie with a microphone that says it 's pretty simple

Go Hoosiers!

20.01.2026 04:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sequences of 5β€² untranslated regions in viral RNAs drive codon-usage-independent translation by blocking mRNA circularization, enabling viruses to evade the host’s codon-usage control of translation @nature.com
www.nature.com/articles/d41... on
www.nature.com/articles/s41...

09.01.2026 02:33 πŸ‘ 14 πŸ” 11 πŸ’¬ 1 πŸ“Œ 0
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Global Landscape of Human Kinase Motifs in Viral Proteomes Viruses are classically viewed as targets of host sensing, yet whether they also sense and respond to host cues remains largely unexplored. We propose that host-driven post-translational modification ...

Thrilled to share the first major preprint from the lab. Viruses are classically viewed as targets of host sensing. Do viruses also sense and respond to the host? We propose viruses may act as β€œbiosensors” of the host signaling state. A threadπŸ‘‡πŸΎ www.biorxiv.org/content/10.1...

31.12.2025 16:27 πŸ‘ 36 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1
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Intracellular interactions shape antiviral resistance outcomes in poliovirus via eco-evolutionary feedback - Nature Ecology & Evolution A model of intrahost poliovirus replication shows that, after several rounds of replication, pocapavir, a poliovirus capsid inhibitor, collapses viral density, preventing intracellular interactions th...

My first lead author paper is out with Ben Kerr and @alisonfeder.bsky.social! We found that making an antiviral too strong can sometimes make resistance easier to evolve. This has implications for how we design drugs, choose doses, and think about viral evolution in the face of treatment. (1/n)

08.12.2025 17:14 πŸ‘ 79 πŸ” 31 πŸ’¬ 4 πŸ“Œ 3
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Flaviviridae RdRp exploits NSUN2-driven m5C methylation to establish persistent infection Author summary Flaviviridae virusesβ€”including JEV, CSFV, and HCVβ€”deploy intricate molecular strategies to subvert host innate immune surveillance and establish chronic infections, representing signifi...

Flaviviridae RdRp exploits NSUN2-driven m5C methylation to establish persistent infection

journals.plos.org/plospathogen...

05.12.2025 14:15 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Now published as version of record at @elife.bsky.social !

Layers of Immunity: Deconstructing the Drosophila effector response. The tools are now deposited in the VDRC (link ⬇️)

elifesciences.org/articles/107...
shop.vbc.ac.at/vdrc_store/d...

#Drosophila #IDsky #SymbioSky #Infection #Immunology

28.11.2025 21:34 πŸ‘ 28 πŸ” 14 πŸ’¬ 0 πŸ“Œ 0
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Rapid compensatory evolution within a multiprotein complex preserves telomere integrity Intragenomic conflict with selfish genetic elements spurs adaptive changes in subunits of essential multiprotein complexes. Whether and how these adaptive changes disrupt interactions within such comp...

How to keep in step when your (protein) partner speeds up…

Here we investigated the adaptive remodeling of a protein-protein interaction surface essential for telomere protection.

Congrats to whole team!

www.science.org/doi/10.1126/...

28.11.2025 17:22 πŸ‘ 120 πŸ” 64 πŸ’¬ 6 πŸ“Œ 4
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Meng-Chao Yao Obituary | 1949 - 2025 | Seattle Times View Meng-Chao Yao's complete obituary, share memories, and explore 1 tribute posts from the community.

Deeply saddened by the passing of my colleague, Prof. Meng-Chao Yao, a remarkable scientist and mentor. He left an indelible mark on all of us fortunate enough to know him. His legacy in molecular and ciliate biology will endure. Rest well, my friend. 1/

obituaries.seattletimes.com/obituary/men...

17.11.2025 23:24 πŸ‘ 67 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1

I’m excited to share my recent postdoc work. Here, we interrogate how different phage infection outcomes (productive vs. restrictive) affect the expression of phage defense systems. We find that a restricted infection not only inhibits the phage but also induces increased immune protein abundance.

15.11.2025 18:10 πŸ‘ 31 πŸ” 19 πŸ’¬ 1 πŸ“Œ 1
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Single-cell susceptibility to viral infection is driven by variable cell states Not all cells that can be infected by a virus become infected with that virus. Single-cell clone tracing reveals intrinsic cell states with variable expression patterns that increase susceptibility to...

So awesome to have this great paper from Sam Reffsin and Sara Cherry out! In it, we use retrospective clone tracing to show that there are particular single cell states that are more susceptible to viral infection (both SARS-CoV-2 and flu)!

www.cell.com/cell/fulltex...

14.11.2025 16:47 πŸ‘ 59 πŸ” 18 πŸ’¬ 1 πŸ“Œ 2

Are you an early-stage graduate student (2nd or 3rd year) or early-stage postdoc based in the US or Canada, working primarily in Drosophila? Would you like to help improve the experience of all trainees working in Drosophila research? If so, read on.

(Please repost to reach a broad audience.)

12.11.2025 04:49 πŸ‘ 89 πŸ” 182 πŸ’¬ 1 πŸ“Œ 2
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Community survey on the addition of Dengue, Chikungunya, Oropouche, Zika and Yellow fever virus to Pathoplexus Pathoplexus is a new platform for sharing pathogen sequence data, launched in August 2024 [1], with the primary aim of making sharing and accessing pathogen genomic data easier, faster, and more effic...

@andersonfbrito.bsky.social and I are seeking input from the community on hosting/sharing arbovirus sequencing data (DENV, CHIKV, OROV, ZIKV, & YFV) on @pathoplexus.org.

Please consider filling out this VERY SHORT survey about your interest and/or concerns.

docs.google.com/forms/d/e/1F...

30.10.2025 20:11 πŸ‘ 15 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0

More pictures of the brilliance that is (lab manager) Aida de la Cruz with her creation.

25.10.2025 02:41 πŸ‘ 166 πŸ” 33 πŸ’¬ 5 πŸ“Œ 2

Muyuan Chen has turned structural biology into an immersive experience with his new video game Meowtabolism, now available on Steam.
Try the demo here: store.steampowered.com/app/4045010/...
Give Muyuan feedback: steamcommunity.com/app/4045010
#ScienceGaming #StructuralBiology #CryoEM #STEMOutreach

04.10.2025 13:34 πŸ‘ 49 πŸ” 22 πŸ’¬ 1 πŸ“Œ 3
Join β€” Genoyer Lab

Excitingly, we are now hiring at all levels!! Please reach out if you are interested in RNA viruses, viral replication, innate immunity, RNA imaging, or are just excited about having fun doing cool science! Information about specific positions here www.genoyerlab.com/join

03.10.2025 18:10 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1

It is a very interesting question and I would definitely try it in vitro if I could. That being said, the first study that hinted at this temperature dependency was done using rabbit reticulocytes.

29.09.2025 15:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0