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.

⚗️ biochemistry

Cas12a cleavage and trimming kinetics reveal mismatches as a strategy to steer editing

This study demonstrates that intentionally introducing mismatches into Cas12a guide RNAs creates reprogrammed gRNAs (rpgRNAs) that leverage altered cleavage and trimming kinetics to shift DNA repair outcomes toward preferred frameshifts, thereby significantly enhancing gene knockout efficiency.

Ahmed, U., Michneviciute, F., Vinogradovas, M., Dirvelyte-Valauske, E., Neniskyte, U., Jones, S. K.2026-09-22
⚗️ biochemistry

Programmable gold nanoparticle conjugates enable precise AMPA receptor localization at brain synapses by cryo-ET

This study introduces rigidly conjugated gold nanoparticle-Fab reagents that overcome the limitations of flexible linkers in cryo-electron tomography, enabling sub-nanometer resolution localization and conformational analysis of AMPA receptors within brain synapses.

Spangler, C. J., Dhandapani, G., Matsui, A., Shiltseva, E. V., Nix, J., Pruneda, J. N., Elferich, J., Gouaux, E.2026-09-22
⚗️ biochemistry

Molecular Architecture of the Human GCN1-ABCF3 Ribosome Collision Sensor

This study elucidates the molecular mechanism by which human GCN1 senses ribosome collisions to activate the Integrated Stress Response, revealing that it rigidifies collided di-ribosomes and recruits the mammalian ortholog ABCF3 (the functional equivalent of yeast Gcn20) during amino acid starvation.

Chandrasekaran, V., Gupta, R., Angani, M. T., Haddad, T. F. M., Tate, C. G., Ramakrishnan, V., Hinnebusch, A. G.2026-09-22✓ Author reviewed ⓘ
⚗️ biochemistry

Structural basis of ligand-selective transcriptional activation in the MerR-family antibiotic resistance regulator AlbA

This study elucidates the structural mechanism by which the MerR-family regulator AlbA differentially responds to albicidin and pyrrolobenzodiazepines (PBDs), revealing that PBDs bind as CTD plugs without disrupting autoinhibition, thereby acting as resistance-breaking partners that restore albicidin efficacy against AlbA-mediated multidrug resistance.

Di Palma, M., Grinzato, A., Andriollo, P., Kleebauer, L., Leusciatti, M., Morra, G., Sutton, J. M., Rahman, K. M., Stein (…)2026-09-22
⚗️ biochemistry

ACAD10 encodes two orphan enzymes in the ether lipid biosynthetic and salvage pathways

This study identifies ACAD10 as the long-sought enzyme responsible for both phosphorylating 1-O-alkylglycerols and dephosphorylating 1-O-alkyl-2-acetyl-sn-glycero-3-phosphate, thereby completing the ether lipid biosynthetic and salvage pathways and linking its genetic variation to type 2 diabetes risk.

Ye, J., Purlyte, E., Lopez, V. A., Mill, J., Tatge, L., Kizzar, T., Baldwin, D., Rashan, E., Kim, J., Pagliarini, D. A. (…)2026-09-15
⚗️ biochemistry

Biochemical characterisation of fungal bioluminescence enzymes reveals substrate inhibition and secondary turnover of 3-hydroxyhispidin by H3H

This study characterizes fungal bioluminescence enzymes from *Neonothopanus nambi* and *Mycena chlorophos*, revealing that hispidin-3-hydroxylase (H3H) exhibits substrate inhibition by hispidin and an unexpected secondary catalytic activity that converts 3-hydroxyhispidin back to caffeic acid, thereby uncovering new metabolic complexity and providing a framework for pathway engineering.

Burnett, J. F., Lang, J., Tumber, A., Mackenzie, H. W., Poplevicheva, I., Chan, I. X. R., Watson, C., Rabe, P.2026-09-14
⚗️ biochemistry

Action of cofilin on ADP-Pi-containing actin filaments

Using single-filament microfluidics and fluorescence microscopy, this study reveals that cofilin preferentially binds to and severs ADP-actin filaments by accelerating phosphate release in neighboring ADP·Pi subunits while exhibiting significantly slower severing at ADP·Pi boundaries, thereby demonstrating that cofilin's activity is locally modulated by the immediate nucleotide state of actin subunits.

Kassamaly, I., Nojszewska, N., Dos Santos, T., Wioland, H., JEGOU, A., Romet-Lemonne, G.2026-09-14