276 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 demonstrates that oxidative stress induces human endothelial progenitor cell dysfunction by upregulating miR-34a-3p, which directly targets and suppresses the FoxO3a 3'UTR, creating a post-transcriptional feedback loop that exacerbates cell apoptosis and impairs angiogenic capacity.
This study utilizes a comprehensive, statistically rigorous analysis of all 64 mutation combinations in a phosphotriesterase across nine diverse substrates to reveal how substrate-dependent intramolecular network rewiring drives functional trade-offs and defines the molecular basis of enzyme promiscuity and adaptive evolution.
This study elucidates the structural and biochemical mechanisms by which the clinical antivirals nirmatrelvir and ensitrelvir inhibit the main protease of the emerging human-adapted HKU5-CoV-2, revealing conserved inhibitor recognition modes that support the development of broad-spectrum antivirals against merbecoviruses.
This paper demonstrates that synthetic cell-penetrating thyclotides (CPTs) effectively overcome membrane barriers to enable the efficient cellular uptake and endosomal escape of bioactive peptides, thereby offering a promising new strategy for developing intracellular therapies.
The paper introduces microProteomEx, an integrated platform combining tissue expansion, laser capture microdissection, and mass spectrometry to achieve simultaneous three-dimensional super-resolution imaging and deep spatial proteomics in both mechanically resilient tissues and formalin-fixed clinical samples, enabling the correlation of nanoscale ultrastructure with molecular heterogeneity for disease biology and precision medicine.
This study demonstrates that zinc ions differentially modulate tau aggregation, fibril morphology, and prion-like seeding in a construct-dependent manner, revealing that cofactor effects arise from their specific interplay with tau sequence and conformational constraints rather than being intrinsic properties of the cofactor itself.
This study identifies ELAVL family proteins as essential, evolutionarily conserved co-regulators that physically interact with Musashi (MSI) proteins to enable MSI-dependent translational activation of specific mRNAs during processes such as oocyte maturation and pituitary development.
This study reveals that Gβγ acts as a critical positive allosteric modulator that binds multiple sites on PLCβ3 to reorient its catalytic domain and facilitate maximal activation by Gq at the plasma membrane, rather than recruiting the enzyme to the membrane itself.
This study reveals that *Trypanosoma brucei* utilizes three distinct Oxa1 paralogs with specialized roles in mitochondrial membrane protein insertion, where TbOxa1-1 and TbOxa1-2 are essential for the biogenesis of specific oxidative phosphorylation complexes and TbOxa1-3 plays a minor role, demonstrating an evolutionary division of labor to manage a divergent mitochondrial proteome.
This study demonstrates that the carbon kinetic isotope effects of both Form I and Form II Rubisco enzymes decrease linearly with increasing temperature, challenging the long-held assumption that these values are temperature-independent and suggesting significant implications for interpreting carbon isotope records in Earth and biological sciences.