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- Molecular BiologybioRxivPreprint
LOca-1: A minimal calcium-activated arginyl-specific orthocaspase from the Loki's Castle hydrothermal vent field
Hasan Arsın, Petra Hribovšek, Liam Urich…·Ida Helene Steen
The paper characterizes LOca-1, a calcium-activated arginyl-specific orthocaspase from Loki's Castle, showing its thermoactivity and structural conservation with plant metacaspases.
DOI 10.64898/2026.11.04.764195 - BiochemistrybioRxivPreprint
Bacterial major vault protein homologs form divergent vault structures
Jake C Lachowicz, Mohammed Hoque, Anbo Zhou…·Andrew D Baik
The paper identifies bacterial MVP homologs and reports cryoEM structures of vaults from Corallococcus praedator and a Deltaproteobacteria bacterium, revealing novel symmetries.
DOI 10.64898/2026.11.06.764734 - Molecular BiologybioRxivPreprint
A cohesin acetylation complex that recognises nicked DNA
Celine Bouchoux, Frank Uhlmann
The paper predicts a cohesin acetylation complex in budding yeast that interacts with nicked DNA and confirms its function through experiments.
DOI 10.64898/2026.11.05.764696 - MicrobiologybioRxivPreprint
Cryo-EM structures of an Acinetobacter baumannii podovirus reveal a canonical capsid maturation
Heng Xue, Guibo Rao, Xinfeng Li…·Hang Yang
The paper reports the cryo-EM structures of an Acinetobacter baumannii podovirus, revealing its capsid maturation mechanism and providing a reference for phage engineering.
DOI 10.64898/2026.11.06.765006 - ImmunologybioRxivPreprint
Structural and evolutionary insights into FcαμR recognition of polymeric immunoglobulins
Mai Zhang, Ruixue Zhang, Yuxin Wang, Junyu Xiao
This study determines cryo-EM structures of FcR bound to IgM and IgA, revealing its binding mechanism and evolutionary insights into pIg receptor recognition.
- BiophysicsbioRxivPreprint
Filament assembly confers the mechanical resilience of the IFI16 restrictosome
Christina M. Stallings, Archit Garg, Jungsan Sohn
This study shows that IFI16 filament assembly provides mechanical stability to condensates by compacting DNA into ultra-stable tangles, contrasting with the sensitivity of HIN200-dsDNA complexes.
DOI 10.64898/2026.10.30.763160 - NeurosciencebioRxivPreprint
Mapping Endogenous Psychedelic Chemistry: Indolethylamine N-Methyltransferase (INMT) Localizes Proximal to the Golgi Apparatus of Human Neurons
Karis Will, Sergio Lázaro Martínez, Surya A Reis, Stephen J Haggarty
This study identifies INMT's localization near the Golgi apparatus in human neurons and suggests it creates a region for psychedelic tryptamine biosynthesis.
DOI 10.64898/2026.10.30.758666 - Pharmacology & ToxicologybioRxivPreprint
Target Specific Conformational Flexibility and Electrostatic Complementarity Modulate LTNF10 Peptide Binding to Phospholipase A2 Variants from Snake Venoms
Aayushi Gupta, Mohan Maruthi Sena, Bipin Singh
This study investigates how charge and conformational changes in a peptide affect its binding to different snake venom PLA2 variants, revealing structural and electrostatic factors influencing affinity.
DOI 10.64898/2026.10.30.761852 - Cell BiologybioRxivPreprint
Conformation governs cellular behaviors of LRRK2 Parkinson's disease variants
Kathryn S Hatch, Katherine J Surridge, Wei Gai…·Samara L Reck-Peterson
This study identifies 'unlatching' as a common mechanism for Parkinson's disease-associated LRRK2 variants, showing increased membrane localization and decreased S935 phosphorylation.
DOI 10.64898/2026.10.30.763152 - BiochemistrybioRxivPreprint
Recognition of the centromere-binding protein Ndc10 by Scm3HJURP directs Cse4CENP-A deposition at native centromeres
Jiaxi Cai, Ziyi Wang, Lily Cheng…·Huilin Zhou
The paper shows Scm3HJURP facilitates Cse4CENP-A deposition at native centromeres by interacting with Ndc10, enhancing Cse4 assembly efficiency in yeast.
DOI 10.64898/2026.10.30.763002 - Molecular BiologybioRxivPreprint
Autophagy activator AA-20 engages CDK5 to promote lipophagy and improve neurodegeneration-associated phenotypes
Ee Phie Tan, Lydia Ambaye, Anne-Laure Mahul-Mellier…·Jeffery W. Kelly
AA-20 promotes lipophagy by activating lysosomal acid lipase and CDK5, reducing lipid droplet accumulation and improving neurodegeneration-associated phenotypes in cellular and organoid models.
- MicrobiologybioRxivPreprint
Dynamic adhesion device of phage OE33PA drives Gram-positive host recognition
Laura Schmitt, Amel Chaïb, Denis Ptchelkine…·Adeline Goulet
This study reports cryo-EM structures of phage OE33PA, revealing a dynamic adhesion device that mediates Gram-positive host recognition through receptor-binding proteins and a hexameric tape measure protein.
DOI 10.64898/2026.05.20.726473 - BiochemistrybioRxivPreprint
Structure of influenza D virus NS1 reveals a novel Zn-binding site and ssRNA-binding activity
Kai Ye, Minhui Guan, Andrew S Kim…·Yizhi J Tao
This study determines the structure of influenza D virus NS1, identifies a novel Zn-binding site and RNA-binding activity in its CTD, and shows their importance for viral replication.
DOI 10.64898/2026.10.29.760789 - BiochemistrybioRxivPreprint
An Integrated Experimental and Informatics Strategy Enables Large Proteoform Identification in Top-Down Proteomics
Matthew S Fischer, Eli J Larson, Ryan K Schroeder…·Ying Ge
The paper presents an integrated experimental and informatics strategy to improve identification of large proteoforms in top-down proteomics, achieving identification of proteoforms up to 223 kDa.
DOI 10.64898/2026.10.30.763218 - MicrobiologybioRxivPreprint
Structure of Bacillus cereus ZmaM, a peptidase-ABC transporter that secretes and activates zwittermicin A
Gerardo E Zavala, José A Velilla, Richard M Walsh…·Rachelle Gaudet
The paper structures ZmaM, a type II peptidase-ABC transporter in B. cereus, showing it activates and exports zwittermicin A by coordinating peptidase and transporter modules.
DOI 10.64898/2026.10.31.763113 - ImmunologyiSciencePeer-reviewed
Anti-HIV-1 B cell antigen receptor signaling and structure
Bhishem Thakur, Jahangir Alam, Kenneth D. Cronin…·S. Munir Alam
This study reports cryo-EM structures of full-length BCRs, revealing their dynamic conformation and antigen binding-induced signaling mechanisms.
DOI 10.1016/j.isci.2026.118048 - Cell BiologybioRxivPreprint
NDE1 Localizes to the Subdistal Appendages to Maintain Centrosome Integrity and Microtubule Organization
Vickie Yang, Paula Almeida Coelho, Sophia M. Slora, David Moore Glover
This study identifies NDE1's localization at subdistal appendages and shows its role in maintaining centrosome integrity and microtubule organization through interactions with other proteins.
- BiochemistrybioRxivPreprint
Structure of a secreted lancelet carotenoid cleavage dioxygenase (CCD), from an ancestral CCD clade
Sheetal Uppal, Gleysin Cabrera Herrera, Liya A. Muslinkina…·T. Michael Redmond
The paper presents the structure and functional properties of a BCOL protein from the lancelet Branchiostoma floridae, revealing structural and sequence differences from other CCDs.
DOI 10.64898/2026.10.29.762971 - BiochemistrybioRxivPreprint
The multidrug transporter Pdr5 from Saccharomyces cerevisiae is an ergosterol-modulated efflux pump
Lea‐Marie Nentwig, Jakob Helmbrecht, Elise Kaplan…·Lutz Schmitt
This study reports the cryo-EM structure of Pdr5, showing ergosterol binding and its effect on transporter activity, with implications for fungal drug resistance.
DOI 10.64898/2026.10.29.762749 - BiophysicsbioRxivPreprint
Injector-based pump-probe serial synchrotron crystallography of CrPhotLOV1 at the MicroMAX beamline
Bence Olasz, M. Wisniewska, Anna Koczurowska…·Przemysław Nogły
This paper establishes a robust workflow for injector-based pump-probe TR-SSX at the MicroMAX beamline to study CrPhotLOV1 structural dynamics.
DOI 10.64898/2026.10.26.762041 - Molecular BiologyNature CommunicationsPeer-reviewed
Genome-Wide Interrogation of SARS-CoV-2 RNA-Protein Interactions Uncovers Hidden Regulatory Sites
Joy S. Xiang, Karen X. Zhao, Laliv Tadri…·Gene Wei-Ming Yeo
This study maps SARS-CoV-2 protein-RNA interactions using eCLIP, revealing new regulatory sites for viral replication and translation.
- MicrobiologybioRxivPreprint
A bacterial chaperone-usher pathway links interkingdom association to antimicrobial protection of a fungal partner
Alyssia Gonzalez, Kurt M. Dahlstrom
The paper investigates how a bacterial chaperone-usher pathway enables interkingdom protection of a fungus from antimicrobial compounds.
DOI 10.64898/2026.10.29.762636 - Cell BiologybioRxivPreprint
Ume6 Coordinates Lysosomal Remodeling and Autophagy Through Transcriptional Repression in S. cerevisiae
Xi Yang, Olivia Evans, Alexis Hoy, Isabel Woo
This study identifies Ume6 as a transcriptional repressor that regulates vacuolar protein composition and autophagy in yeast by interacting with Rph1 and being modulated by protein kinases.
DOI 10.64898/2026.10.29.762757 - Cell BiologybioRxivPreprint
Ankyrin-B regulates cardiomyocyte sarcomere organization and its protein-protein interactions are significantly altered by p.S646F expression
Nicole Sarah York, K’sana Wood Lynes‐Ford, Alexa C. H. McAdam…·Leigh Anne Swayne
This study investigates how ANKB regulates cardiomyocyte sarcomere structure and shows that the p.S646F variant alters its protein interactions, leading to structural abnormalities.
- BiophysicsbioRxivPreprint
Room-temperature light-state structure of the AsLOV2-Rac1 optogenetic actuator by sheet-on-sheet serial femtosecond crystallography
Magdalena Pachota, M. Wisniewska, Madan Kumar Shankar…·Przemysław Nogły
The paper reports room-temperature light-state structures of AsLOV2-Rac1 using serial femtosecond crystallography, revealing structural changes upon light activation.
DOI 10.64898/2026.10.27.762267 - BiophysicsbioRxivPreprint
Identification of PUFA interaction site on ASIC3 suggests a complex regulatory mechanism
Rebecca Roth, Ramya Bandarupalli, Robert C. Klipp…·John R. Bankston
The paper identifies a PUFA binding site on ASIC3 using MD simulations and electrophysiology, showing how DHA modulates channel gating and desensitization.
DOI 10.64898/2026.01.02.697424 - BiochemistrybioRxivPreprint
A novel metalloprotease family discovered through a tardigrade
Tomoka Higashi, Yohta Fukuda, Tsuyoshi Inoue A
The paper identifies RvPeti, a novel metalloprotease from a tardigrade, through structural and biochemical analysis, revealing its Zn2+-dependent proteolytic activity.
DOI 10.64898/2026.10.27.762089