281 papers
Molecular biology explores the tiny machinery inside living cells, revealing how genetic instructions are read, copied, and turned into the proteins that keep us alive. This field acts as a bridge between the static code of DNA and the dynamic processes that drive growth, disease, and life itself, offering insights into everything from cellular repair to the development of new medicines.
On Gist.Science, we track every new preprint uploaded to bioRxiv in this category to make these complex discoveries accessible to everyone. Our team processes each submission to provide both clear, plain-language explanations and detailed technical summaries, ensuring you can grasp the core findings without getting lost in dense academic jargon.
Below are the latest molecular biology papers freshly processed from bioRxiv, ready for you to explore and understand.
This paper elucidates the molecular mechanism by which coilin, the scaffolding protein of Cajal bodies, discriminates between mature and immature snRNPs through a bipartite C-terminal module comprising an RG-repeat RNA-binding region and a Tudor-like domain that specifically binds Sm proteins, thereby facilitating the sequestration of defective complexes.
This study utilizes large-scale mutational analysis to reveal how IStrons balance their dual functions of RNA-guided DNA cleavage and self-splicing, identifying a molecular convergence point at the transposon right end and demonstrating that guide RNA structural stability governs the trade-off between these competing pathways.
This study identifies the transcription factor MEF2A as a negative regulator of pancreatic beta cell maturation and function, demonstrating that its stress-induced upregulation during endoplasmic reticulum stress suppresses key beta cell identity genes and impairs insulin secretion, while its inhibition preserves beta cell function under metabolic stress.
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.
This study utilized DArTSeq genotyping and QTL mapping in a kenaf F2 population to identify significant and putative genetic loci controlling oil sorption capacity, thereby providing a foundation for marker-assisted selection to develop improved genotypes for oil spill remediation.
This study demonstrates that ATG5 drives steroid-induced osteonecrosis of the femoral head by triggering excessive autophagy and PERK-mediated endoplasmic reticulum stress leading to apoptosis, and shows that targeted ATG5 silencing effectively blocks this pathological cascade to alleviate bone damage.
This study validates shotgun metagenomics for detecting soil-transmitted helminths in faecal samples, demonstrating that mitochondrial sequence mapping combined with short-read sequencing offers the highest sensitivity and specificity, although detection remains challenging for low-intensity infections.
This study elucidates the evolutionary divergence in eukaryotic DNA replication licensing by demonstrating that *Yarrowia lipolytica* utilizes a highly plastic ORC-Cdc6 complex to recognize variable origin sequences, contrasting with the rigid sequence-specific recognition in *S. cerevisiae* and providing structural insights into the conserved yet adaptable mechanisms of origin identification across species.
This study identifies the *E. coli* lipoprotein YbjP as a structural partner that binds to and stabilizes the outer membrane protein TolC, mimicking the lipid modifications found in homologs from other bacteria, although this interaction is not strictly required for standard efflux activity.
This study establishes the first MS2-MCP-based single-molecule RNA imaging system in *Schizosaccharomyces pombe* by systematically optimizing MCP expression and localization with tandem StayGold tags, thereby enabling quantitative analysis of RNA dynamics in this key eukaryotic model organism.