316 papers
Biochemistry explores the intricate chemical processes that power life, bridging the gap between biology and chemistry to explain how molecules like proteins and DNA function within living cells. This field reveals the molecular machinery behind everything from metabolism to genetic inheritance, turning complex biological mysteries into understandable chemical interactions.
On Gist.Science, we bring you the freshest discoveries in this dynamic area directly from bioRxiv. Our team processes every new preprint uploaded to the server, transforming dense academic findings into both clear, plain-language overviews and detailed technical summaries. This dual approach ensures that whether you are a curious beginner or a seasoned researcher, you can grasp the significance of these breakthroughs immediately.
Below are the latest papers in biochemistry, complete with our curated summaries to help you navigate the cutting edge of molecular science.
This study reports the first successful reconstitution of the bacterial TAT translocation system by demonstrating that the glycolipid MPIase is an essential component required for the proton motive force-dependent translocation of prefolded proteins.
By determining the 3.1 Å cryo-EM structure of the tC19Z RNA polymerase ribozyme, researchers identified a specific ectopic base-pairing interaction that inhibits activity, enabling the design of compensatory mutations that successfully accelerate the ribozyme's extension rate and advance the goal of nucleotide-based self-replication.
This study characterizes the distinct linkage specificities and divergent quaternary structures of three *Dysgonomonas gadei* GH172 arabinofuranosidases, while developing covalent inhibitors and activity-based probes that reveal their catalytic mechanisms and enable selective profiling in complex biological samples.
Using stereoselective chemoenzymatic synthesis to overcome racemization issues, researchers identified specific 2,5-diketopiperazine stereoisomers that effectively induce autophagy in Caco-2 cells through a mechanism independent of mTORC1 suppression, highlighting the critical role of stereochemistry and amino acid side-chain properties in their activity.
This paper introduces Peptergents, a peptide-based surfactant technology that enables a complete detergent-free workflow for native membrane proteomics, successfully preserving the structural integrity, functional conformations, and fragile assemblies of membrane proteins while enhancing peptide signal intensity and enriching specific metabolic networks for downstream LC-MS/MS analysis.
This study demonstrates that yeast vacuolar PI(3,4,5)P3, synthesized by Vps34, is essential for vacuole fusion by coordinating vertex assembly and retaining the SNARE protein Vam7 to facilitate trans-SNARE pairing.
This study identifies and characterizes a previously unannotated sporulation-associated protein in *Clostridium pasteurianum* as a functional ferredoxin-NADP+ reductase, revealing its unique structural features, low catalytic efficiency, and potential role in redox regulation during endospore formation through combined bioinformatic, kinetic, and structural analyses.
This study reveals the structural mechanism by which Rubicon selectively inhibits the PI3KC3-C2 complex through a UVRAG-induced conformational change in the BECN1 BARA domain, demonstrating that disrupting this specific interaction is sufficient to restore autophagy and lysosomal function to levels comparable to Rubicon gene deletion.
This paper presents the first GPU-enabled implementation of Gaussian accelerated molecular dynamics (GaMD) in GROMACS 2025.4, demonstrating its effectiveness for enhanced sampling of protein folding and ligand binding through successful free-energy recovery across four benchmark systems without requiring predefined collective variables.
This study demonstrates that the difficulty in engineering robust co-repressible transcriptional systems compared to inducible ones stems from fundamental thermodynamic constraints on allosteric free-energy landscapes, suggesting that natural co-repressible scaffolds like PurR offer superior foundations for creating ligand-activated regulators.