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Algal production of dimethyl sulfide plays a role in attracting predators and enhancing predation by zooplankton, thus mediating predator–prey relationships in the ocean.
Structural analysis of two human monoclonal antibodies that conform the antibody cocktail AZD7442, in complex with the RBD of SARS-CoV-2, reveal strong neutralization of SARS-CoV-2 variants of concern.
Single-molecule live-cell imaging of LexA in Escherichia coli shows continuous self-cleavage of this SOS repressor across the bacterial population, even during unperturbed growth. This results in substantial differences in LexA abundance across individuals, leading to spontaneous SOS induction in some cells and enhancing bacterial survival in anticipation of stress.
A piggyBac transposon mutagenesis screen identifies the long non-coding RNA, DINOR, in the human fungal pathogen Candida auris. DINOR is a virulence factor and regulates fungal stress responses and filamentation.
Salmonella mutants with reduced ability to colonize the mouse gut and cause disease are selected for by vaccine-induced intestinal antibody responses in mice.
The in situ cryo-electron microscopy structure of the intact Salmonella flagellar basal body—including the inner membrane rotor, drive shaft and outer membrane bushing complex—elucidates the mechanisms of assembly of this complex macromolecular structure that enables bacterial motility.
A combination of genomics analyses and cultivation experiments from activated sludge leads to the identification of ‘Candidatus Mycosynbacter amalyticus’, an ultrasmall epiparasitic bacterium that can lyse other bacteria such as Gordonia amarae, a filamentous actinomycete commonly associated with foams in wastewater treatment plants.
Akkermansia muciniphila produces P9, a small protein that interacts with intercellular adhesion molecule 2 to increase thermogenesis and glucagon-like peptide-1 secretion in mice.
Salivary mucin-derived glycans downregulate genes of quorum-sensing systems associated with genetic competence, thereby suppressing the transformation of Streptococcus mutans.
Live-cell single-molecule imaging of different Bacillus subtilis divisome proteins that interact with FtsZ (such as FtsA, EzrA, SepF and ZapA) reveals different subcomplexes with distinct motility: stationary FtsZ-binding proteins that bind transiently to treadmilling FtsZ filaments, and moving complexes containing cell wall synthases.
The architecture and molecular composition of the rhoptry secretion system in Apicomplexa evolved from an Alveolata-specific fusion machinery ancestry.
The spatial integration of transcription and mRNA splicing in a dedicated sub-nuclear compartment underpins monogenic antigen expression in trypanosomes.
An analysis of gut microbiomes of patients with non-small-cell lung cancer reveals an association between Bifidobacterium bifidum abundance and response to cancer therapy. In murine models of syngeneic tumours, administration of commercial B. bifidum strains synergizes with immune checkpoint blockade to reduce tumour burden, but the therapeutic potential of B. bifidum is affected by strain-level variation.