Anjana Badrinarayanan
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anjbadri.bsky.social
Anjana Badrinarayanan
@anjbadri.bsky.social
www.microgenomes.com
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Happy to share Asha Joseph and Inchara Adhikashreni's latest work from the lab, describing replisome speed variation in Caulobacter!

www.cell.com/current-biol...
Live tracking of replisomes reveals nutrient-dependent regulation of replication elongation rates in Caulobacter crescentus
Adhikashreni et al. use quantitative live-cell imaging to track cell-cycle dynamics in hundreds of individual bacteria. They observe nutrient-dependent regulation of replication elongation rates that ...
www.cell.com
Happy to share Asha Joseph and Inchara Adhikashreni's latest work from the lab, describing replisome speed variation in Caulobacter!

www.cell.com/current-biol...
Live tracking of replisomes reveals nutrient-dependent regulation of replication elongation rates in Caulobacter crescentus
Adhikashreni et al. use quantitative live-cell imaging to track cell-cycle dynamics in hundreds of individual bacteria. They observe nutrient-dependent regulation of replication elongation rates that ...
www.cell.com
April 4, 2025 at 3:57 PM
Reposted by Anjana Badrinarayanan
The biology and ecological impact of #phages in the mammalian gut are poorly understood. This Primer explores a @plosbiology.org study that provides a glimpse into the disruptive biology of the #Hankyphages, parasites of the ubiquitous Bacteroidaceae. 🧪 Primer: plos.io/3RukgtJ Paper: plos.io/41Rr22S
April 2, 2025 at 4:44 PM
Reposted by Anjana Badrinarayanan
Glad to share the work of @yli18smc.bsky.social and co on Lamassu, a bacterial defense system related to Rad50/Mre11 (RM). While RM carefully trims DNA ends for repair, Lamassu chops up the host chromosome. Our study reveals how it is regulated to minimize damage, activating only during infection.
March 16, 2025 at 9:15 AM
Reposted by Anjana Badrinarayanan
Happy to share the beautiful structure of a Wadjet SMC complex by @roisnehamelinf.bsky.social, with support from the DCI and @drhonsworth.bsky.social ! This is a type II Wadjet with unique characteristics including a tandem KITE subunit, distinct coiled coil architecture and a deviant hinge.
March 11, 2025 at 9:22 AM
Reposted by Anjana Badrinarayanan
In @molecularmicro.bsky.social: two special issues on Prokaryotic Chromosome Organization. Many excellent contributions, including a vision article: 'Future directions of the Prokaryotic Chromosome Field', outcome of BioPhyChrom 2023 @biophychrom.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
Future Directions of the Prokaryotic Chromosome Field
In September 2023, the Biology and Physics of Prokaryotic Chromosomes meeting ran at the Lorentz Center in Leiden, The Netherlands. As part of the workshop, those in attendance developed a series of ....
onlinelibrary.wiley.com
February 20, 2025 at 8:14 PM
Reposted by Anjana Badrinarayanan
Cellular responses to RNA damage: Cell
Such a great and timely review for a topic that remained under-explored for such a long time but has attracted a lot of attention in the last few years. The field is now moving in leaps and bounds. #RNAsky

www.cell.com/cell/fulltex...
Cellular responses to RNA damage
RNA plays a central role in protein biosynthesis and performs diverse regulatory and catalytic functions, making it essential for all processes of life. Like DNA, RNA is constantly subjected to damage...
www.cell.com
February 20, 2025 at 5:28 PM
Reposted by Anjana Badrinarayanan
OUT NOW: KorB is a DNA clamp which slides along DNA to mediate long-range gene silencing upon interaction with the clamp-locking KorA protein

by Tung Le & co @johninnescentre.bsky.social

www.nature.com/articles/s41...
KorB switching from DNA-sliding clamp to repressor mediates long-range gene silencing in a multi-drug resistance plasmid - Nature Microbiology
Structural and single-molecule analyses show the CTPase, KorB, is a sliding DNA clamp that interacts with a clamp-locking protein KorA to inhibit gene expression over distances of more than 1 kb in th...
www.nature.com
January 23, 2025 at 10:58 AM
Reposted by Anjana Badrinarayanan
Important paper from the Weber-Ban lab about the mechanism of activation of PafBC in the mycobacterial DNA damage response.

Single-stranded DNA binding to the transcription factor PafBC triggers the mycobacterial DNA damage response | Science Advances www.science.org/doi/10.1126/...
Single-stranded DNA binding to the transcription factor PafBC triggers the mycobacterial DNA damage response
The structure of PafBC in its active conformation reveals the binding mode of the activating ligand at the PafBC WYL domains.
www.science.org
February 8, 2025 at 12:26 PM
Reposted by Anjana Badrinarayanan
What happens to bacterial genomes when they're cloned into yeast? Do they transcribe, do they get silenced, do they get packaged away from the rest of the DNA? This cool study congrats to the Koszul lab team at Pasteur for this great work.
www.science.org/doi/10.1126/...
Sequence-dependent activity and compartmentalization of foreign DNA in a eukaryotic nucleus
In eukaryotes, DNA-associated protein complexes coevolve with genomic sequences to orchestrate chromatin folding. We investigate the relationship between DNA sequence and the spontaneous loading and a...
www.science.org
February 6, 2025 at 11:09 PM
When does a DNA polymerase degrade DNA? Read Akshaya’s work from the lab to find out more!
Akshaya Seshadri and Anjana Badrinarayanan @anjbadri.bsky.social @ncbsbangalore.bsky.social @tifrscience.bsky.social show that exonuclease action of replicative #polymerase gamma drives damage-induced #mitochondria #DNA clearance. New mechanism of mtDNA clearance.

www.embopress.org/doi/full/10....
February 6, 2025 at 9:30 PM
Fun work on the regulation of the bacterial SOS response to DNA damage. Led by the fantastic @adityakamat.bsky.social!
January 29, 2025 at 4:40 AM
Reposted by Anjana Badrinarayanan
Reposted by Anjana Badrinarayanan
New discovery from our #CDlab reported in Cell @cp-cell.bsky.social today:
SMC motor proteins have a left-right ‘gearbox’ and can switch direction in DNA loop extrusion!

www.sciencedirect.com/science/arti...

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January 16, 2025 at 4:11 PM
Reposted by Anjana Badrinarayanan
This was an amazing collaboration, we had the luxury of years of great conversations with @wallaceucsf.bsky.social and his team, as well as our other @HFSP partners @anjbadri.bsky.social and Johan Paulsson. Thanks for telling the story here, Wallace!
Mitochondria consist of networks of cylindrical tubes, right? Not necessarily! - in our new preprint, @gavsturm.bsky.social investigates how mitochondria transiently adopt a beads-on-a-string morphology

www.biorxiv.org/content/10.1...
December 23, 2024 at 8:40 PM