Anjana Badrinarayanan
@anjbadri.bsky.social
220 followers 380 following 5 posts
www.microgenomes.com
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Reposted by Anjana Badrinarayanan
plosbiology.org
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
Schematic showing how Hankyphage has multiple mechanisms of generating randomness in its own and its bacterial host genomes. (1) RepCHP-dependent spontaneous induction of prophage, (2) incomplete packaging leading to defective virions and free tails in combination with low-level complete packaging and potential transduction events, (3) intrachromosomal transposition leading to genetic variation in the host genome, and (4) diversity generating retroelements within the phage genome impacting the host range of the phage. Created with BioRender.
Reposted by Anjana Badrinarayanan
gruberlab.bsky.social
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.
Alt : Structure of the apo Lamassu protein complex. Schematic model of the active LmuA tetramer nuclease (top right). Lamassu icon (top left).
Reposted by Anjana Badrinarayanan
gruberlab.bsky.social
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.
Side view of the structure of a monomer of type II Wadjet.
Reposted by Anjana Badrinarayanan
rnanomad.bsky.social
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
Reposted by Anjana Badrinarayanan
michaelglickman.bsky.social
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
Reposted by Anjana Badrinarayanan
anjbadri.bsky.social
When does a DNA polymerase degrade DNA? Read Akshaya’s work from the lab to find out more!
emboreports.org
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....
Reposted by Anjana Badrinarayanan
ceesdekker.bsky.social
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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Reposted by Anjana Badrinarayanan
sulianamanley.bsky.social
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!
wallaceucsf.bsky.social
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...