Structural basis for continuous DNA-end protection during ligation of double-strand breaks in yeast Non-Homologous End-Joining

This study utilizes cryo-electron microscopy to reveal the structural mechanisms of DNA-PKcs-independent Non-Homologous End-Joining in yeast, demonstrating how Dnl4-mediated synaptic complexes achieve continuous DNA-end protection and strand-specific ligation on microhomology substrates while explaining the inefficiency of blunt-end joining through a non-aligned, ligation-incompatible configuration.

missoury, s., Tettaravou, C., Castelli, S. + 10 more2026-03-12📄 molecular biology

Ischemic stroke rewires the neuronal translatome via stress-induced stop codon readthrough, frameshifting, and codon-biased translation

This study presents a temporal ribosome-profiling atlas of the mouse ischemic brain, revealing that stroke triggers a staged translational injury response characterized by hyperacute stop-codon readthrough and GC-biased translation, followed by widespread reading frame disruption and alternative ORF usage.

Rashad, S., Kitamura, Y., Nagai, T. + 5 more2026-03-11📄 molecular biology

Characterization of aliA and aliB deletion mutants reveals a dominant role of AliA in Haloferax volcanii lipoprotein lipidation

This study demonstrates that in *Haloferax volcanii*, the paralog AliA serves as the primary enzyme for lipoprotein lipidation, while AliB plays a minor, non-redundant role, thereby establishing distinct functions for these enzymes and advancing the understanding of archaeal lipoprotein biogenesis.

Hong, Y., Garcia, A. A., Kopelev, S. + 5 more2026-03-11📄 molecular biology

Analysis of Gene Expression Changes upon Topobexin Treatment and TOP2B-knockout in hiPSC derived cardiomyocytes

This study demonstrates that the TOP2B-selective inhibitor topobexin effectively phenocopies the effects of TOP2B gene knockout in hiPSC-derived cardiomyocytes, establishing it as a viable alternative to genetic deletion for investigating TOP2B function and screening cardioprotectants against anthracycline-induced cardiotoxicity.

Kerestes, V., Cowell, I. G., Jirkovska, A. + 13 more2026-03-11📄 molecular biology

A novel subset of hepatocytes is simultaneously gluconeogenic and de novo lipogenic in the fed state and is naturally insulin resistant

This study challenges the traditional view of mutually exclusive hepatic metabolic states by identifying a novel, naturally insulin-resistant subset of periportal hepatocytes that simultaneously perform gluconeogenesis and de novo lipogenesis in the fed state, a phenomenon that expands in high-fat diet conditions and suggests a new paradigm for understanding liver insulin resistance.

Okada, J., Landgraf, A., Horton, M. + 15 more2026-03-11📄 molecular biology

CRISPR screens establish regulatory maps of immunosuppressive surface molecules in cancer

This study utilizes a time-controllable CRISPR screening system to map the regulatory networks of key immunosuppressive surface molecules in cancer, identifying the membrane-trafficking factor DNAJC13 as a critical regulator whose suppression enhances T-cell-mediated tumor destruction and improves survival in pancreatic cancer models.

Kalis, R., Deswal, S., Schaefer, M. + 13 more2026-03-11📄 molecular biology