Arun Sharma
arunphd.bsky.social
Arun Sharma
@arunphd.bsky.social
Pinned
Happy to share that a part of my PhD work published in Communications Biology rdcu.be/dYA61. In this work we have characterised VapBC13 and VapBC26 TA systems. Thanks to Dr Raman and team for support.
Deciphering the role of VapBC13 and VapBC26 toxin antitoxin systems in the pathophysiology of Mycobacterium tuberculosis
Communications Biology - The ectopic expression of VapC13 and VapC26 results in transcriptional reprogramming of M. tuberculosis. Both, VapBC13 and VapBC26 TA systems are dispensable for infection...
rdcu.be
Reposted by Arun Sharma
Many of you in the mycobacterial community attended the awesome inaugural 2025 Biology of Mycobacteria GRC, organized by @heran.bsky.social and myself: www.grc.org/biology-of-m....

I am writing with an update about this conference as the new chair.
2025 Biology of Mycobacteria Conference GRC
The 2025 Gordon Research Conference on Biology of Mycobacteria will be held in Pomona, California. Apply today to reserve your spot.
www.grc.org
January 21, 2026 at 7:19 PM
Reposted by Arun Sharma
While everyone is hustling for the holidays, hopefully folks will have time to submit abstracts or register for #ASMMicrobe2026 in DC! Please repost!
December 22, 2025 at 2:40 PM
Reposted by Arun Sharma
🚨 𝐍𝐞𝐰 𝐩𝐫𝐞𝐩𝐫𝐢𝐧𝐭 𝐟𝐫𝐨𝐦 𝐨𝐮𝐫 𝐥𝐚𝐛, 𝐚𝐧𝐝 𝐚 𝐟𝐢𝐫𝐬𝐭 𝐢𝐧 𝐭𝐡𝐞 𝐓𝐁 𝐟𝐢𝐞𝐥𝐝! 🚨

We’re thrilled to share our new study revealing how the chromatin regulator SP140 preserves protective T cell immunity during #tuberculosis infection by restraining harmful type I IFN responses.

📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗽𝗿𝗲𝗽𝗿𝗶𝗻𝘁: shorturl.at/r5jd9
December 11, 2025 at 6:07 AM
Reposted by Arun Sharma
Happy to share our latest NAR paper on Rel toxins targeting M. tuberculosis anti-SD region, with Tim Blower’s team (@durham.ac.uk @nebiolabs.bsky.social) and Laurent Falquet
Thanks to FRM @frm-officiel.bsky.social and CNRS @cnrsbiologie.bsky.social
academic.oup.com/nar/article-...
November 17, 2025 at 10:31 AM
Reposted by Arun Sharma
Check out our latest preprint! We show that the same antibacterial toxin requires different immunity proteins depending whether it’s intra or extracellular
Distinct immunity protein families mediate compartment-specificneutralisation of a bacterial toxin https://www.biorxiv.org/content/10.1101/2025.05.31.657152v1
June 1, 2025 at 7:37 AM
Reposted by Arun Sharma
May 2, 2025 at 10:57 AM
Reposted by Arun Sharma
Looks like some CRISPR evolved form TA systems, exciting!

Reprogrammable RNA-targeting CRISPR systems evolved from RNA toxin-antitoxins: Cell www-cell-com.insb.bib.cnrs.fr/cell/fulltex...
February 21, 2025 at 11:05 AM
Reposted by Arun Sharma
Excited to share that our paper on locus visualisation tool LoVis4u is out! Entirely driven by fantastic PhD student Artyom Egorov @egorov.bsky.social academic.oup.com/nargab/artic...
LoVis4u: a locus visualization tool for comparative genomics and coverage profiles
Abstract. Comparative genomic analysis often involves visualization of alignments of genomic loci. While several software tools are available for this task
academic.oup.com
February 25, 2025 at 7:27 AM
Reposted by Arun Sharma
“… rats have detected #Tuberculosis but follow up clinical tests have been negative; in some of these cases, patients later developed TB... Apopo is monitoring these patients to better understand rats’ sensitivity to low levels of bacteria”.
www.theguardian.com/global-devel...
Cheap, smart and efficient: how giant rats are transforming the fight against TB
After success in Tanzania, other African countries may introduce the rodents to help sniff out the disease
www.theguardian.com
December 19, 2024 at 1:04 PM
Reposted by Arun Sharma
December 17, 2024 at 2:36 PM
Reposted by Arun Sharma
There are now 24 step-by-step guides, explaining how to create these ⬇️ data visualizations with R/ggplot2 - I hope this is a useful resource. Find them all here: joachimgoedhart.github.io/DataViz-prot...
December 16, 2024 at 9:25 AM
Reposted by Arun Sharma
Speaker line up for #EMBOTissueImmunity to take place in Basel 🇨🇭 26-29 August 2025. Come join @maurogaya.bsky.social and I for some fantastic #immunology along the Rhine! Please share this invitation - we hope you will join us. Registrations will be open soon.
December 10, 2024 at 12:57 PM
Reposted by Arun Sharma
Believe it or not, GRC has told me we need more registered applicants or this meeting might not survive! Please don't let that happen if you can afford to attend 🙏
If you're interested in learning about the latest of fundamental mycobacteriology, sign up for #GRCMyco2025! Acceptances will start in September, check out the full program and please RT!
We're live with the program!
www.grc.org/biology-of-m...
November 19, 2024 at 10:46 PM
Reposted by Arun Sharma
Happy to share my first ever (co)last author paper 🥳 reporting on how Mtb adapts its carbon diet under acid stress. A big thank you to my partners in crime @saehrt.bsky.social and @healycl.bsky.social without who this would not have been possible 😘
journals.asm.org/doi/10.1128/...
An exacerbated phosphate starvation response triggers Mycobacterium tuberculosis glycerol utilization at acidic pH | mBio
Despite the availability of antibiotic treatment, M. tuberculosis (Mtb), the causative agent of tuberculosis (TB), remains a major infectious disease killer worldwide. A better understanding of the en...
journals.asm.org
December 3, 2024 at 3:00 PM
Happy to share that a part of my PhD work published in Communications Biology rdcu.be/dYA61. In this work we have characterised VapBC13 and VapBC26 TA systems. Thanks to Dr Raman and team for support.
Deciphering the role of VapBC13 and VapBC26 toxin antitoxin systems in the pathophysiology of Mycobacterium tuberculosis
Communications Biology - The ectopic expression of VapC13 and VapC26 results in transcriptional reprogramming of M. tuberculosis. Both, VapBC13 and VapBC26 TA systems are dispensable for infection...
rdcu.be
December 3, 2024 at 5:20 PM