360 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 identifies and characterizes novel inhibitors of the *Pseudomonas aeruginosa* NQR complex, demonstrating through high-resolution cryoEM structures and functional assays that blocking this proton-pumping enzyme disrupts electron transfer and significantly impairs bacterial virulence factors like motility and biofilm formation.
This study utilizes AlphaFold modeling and mutational analysis to propose a revised architecture for the *Shigella* T3SS sorting platform pod, suggesting that two or potentially four copies of the SctQ protein (Spa33) bind to the adaptor MxiK and SPOA2 homodimers to better fit experimental electron density and explain functional requirements.
This study utilizes deep redox proteomics to identify a druggable redox switch at Cys102 on the immune regulator SHP1, enabling the development of a selective covalent agonist that activates SHP1 to suppress macrophage inflammation.
This paper details a laboratory's successful transition from X-ray crystallography to cryo-electron microscopy for studying the ATAD2B protein, outlining practical strategies to overcome biochemical and technical challenges while providing a comprehensive workflow guide for structural biologists adopting this transformative technology.
This paper investigates how combining two antagonistic integral controllers at a shared variable creates distinct regulatory modes—delegated, isolated, and metastable control—enabling both homeostatic and rheostatic behaviors, with applications explaining photoperiodic weight changes in Siberian hamsters and the complex dynamics of blood glucose homeostasis.
This study uses all-atom molecular dynamics simulations to reveal that while tetraethylammonium blocks Kv2.1 channels by binding on-axis near the selectivity filter, the specific inhibitor RY785 binds off-axis to the channel walls, stabilizing a semi-open gate state that occludes ion flow and influences distant voltage sensors.
This study validates a high-throughput ELISA assay demonstrating that the drug lumacaftor selectively inhibits von Willebrand factor binding under inflammatory, oxidizing conditions, offering a promising strategy for developing anti-thrombotic therapeutics that minimize bleeding risks.
This study demonstrates that Xer recombination at the plasmid pSC101 psi site proceeds with a precise topological linking number change of +4, converting four negative supercoils into catenation nodes via an antiparallel alignment and Holliday junction intermediate to ensure stable plasmid inheritance.
This study resolves crystal structures of an ASBT homologue and a humanized version to reveal that, unlike NTCP, these SLC10 family transporters lack a transmembrane pore due to a flexible TM6 helix, and molecular dynamics simulations further demonstrate how membrane lipids facilitate the transport of bile acids with large hydrophobic groups.
The paper introduces RIPUP, a rapid multi-protease workflow combining Arg-C Ultra and r-Chymotrypsin digestion with TMT labeling and HiP-Frag analysis to reduce histone PTM sample preparation from days to hours while significantly expanding coverage to detect previously elusive acylations and variant-specific modifications.