Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Cell-free assays reveal that the HIV-1 capsid protects reverse transcripts from cGAS immune sensing.
PLoS Pathog
January 2025
Division of Microbiology and Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, United States of America.
Retroviruses can be detected by the innate immune sensor cyclic GMP-AMP synthase (cGAS), which recognizes reverse-transcribed DNA and activates an antiviral response. However, the extent to which HIV-1 shields its genome from cGAS recognition remains unclear. To study this process in mechanistic detail, we reconstituted reverse transcription, genome release, and innate immune sensing of HIV-1 in a cell-free system.
View Article and Find Full Text PDFDengue Virus Replicative-Form dsRNA Is Recognized by Both RIG-I and MDA5 to Activate Innate Immunity.
J Med Virol
February 2025
CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China.
RIG-I like receptors (RLRs) are a family of cytosolic RNA sensors that sense RNA virus infection to activate innate immune response. It is generally believed that different RNA viruses are recognized by either RIG-I or MDA5, two important RLR members, depending on the nature of pathogen-associated molecular patterns (PAMPs) that are generated by RNA virus replication. Dengue virus (DENV) is an important RNA virus causing serious human diseases.
View Article and Find Full Text PDFModulation of microtubule dynamics by monovalent ions.
PNAS Nexus
January 2025
Department of Biochemistry, University of Geneva, 1211 Geneva, Switzerland.
The microtubule cytoskeleton is a dynamic network essential for many cellular processes, influenced by physicochemical factor, such as temperature, pH, dimer concentration, and ionic environment. In this study, we used in vitro reconstitution assays to examine the effects of four monovalent ions (Na, K, Cl, and Ac) on microtubule dynamics, uncovering distinct effects for each ion. Na was found to increase microtubule dynamicity by raising catastrophe frequency, polymerization and depolymerization speeds, and ultimately reducing microtubule lifetime by 80%.
View Article and Find Full Text PDFThe ISC machinery assembles [2Fe-2S] clusters by formation and fusion of [1Fe-1S] precursors.
Nat Chem Biol
January 2025
Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France.
Iron-sulfur clusters are essential metallocofactors synthesized by multiprotein machineries via an unclear multistep process. Here we report a step-by-step dissection of the [2Fe-2S] cluster assembly process by the Escherichia coli iron-sulfur cluster (ISC) assembly machinery using an in vitro reconstituted system and a combination of biochemical and spectroscopic techniques. We show that this process is initiated by iron binding to the scaffold protein IscU, which triggers persulfide insertion by the cysteine desulfurase IscS upon the formation of a complex with IscU.
View Article and Find Full Text PDFBiosynthetic characterization of bacillibactin in thermophilic Bacillaceae and its potential for in vitro mutational synthesis.
Chembiochem
January 2025
Osaka University: Osaka Daigaku, International Center for Biotechnology, JAPAN.
Bacillibactin (BB) is a microbial siderophore produced by Bacillus species. BB is biosynthesized from 2,3-dihydroxybenzoic acid (2,3-DHB), Gly, and L-Thr by nonribosomal peptide synthetase (NRPS) enzymes DhbE, DhbB, and DhbF. The biosynthetic gene cluster (dhb) is also conserved in some strains of thermophilic genera, Geobacillus, Anoxybacillus and Parageobacillus.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!