Project description:An Aeromonas allosaccharophila environmental isolate recovered from the Seine River (Paris, France) produced a novel extended-spectrum beta-lactamase, PER-6, that shared 92% amino acid identity with the closest ss-lactamase, PER-2. The kinetic properties of PER-6 showed a slightly increased affinity for carbapenems. The bla(PER-6) gene was chromosomally located and bracketed by non-transposon-related structures.

| S-EPMC2849380 | biostudies-literature

Neuroinflammation and immunothrombosis transcriptional patterns in CCM lesions revealed by spatial transcriptomics

Project description:Cerebral cavernous malformation (CCM) immunothrombosis is the connection between immune cells, platelet activation, coagulation cascades and astrocyte-CCM endothelium interaction, and its excessive activation may contribute to neurological disabilities in CCM disease. We characterized the spatial organization of CCM immunothrombosis observed in Pdcd10BECKObrains under normoxic conditions using the murine 10X Genomics Visium Spatial Gene Expression platform.

2024-09-23 | GSE236164 | GEO

Growth of Aeromonas on Glucose and Chitin

Project description:Aeromonas are ubiquitous inhabitants of both natural and anthropogenic aquatic ecosystems. Occasionally, Aeromonas also grows in drinking water distribution systems, which is highly undesired due to the pathogenicity of some members of this genus. The growth of Aeromonas in such highly oligotrophic environments is currently poorly understood. Possible nutrient sources are biopolymers. For example, chitin is the structural component of the exoskeleton of insects, some invertebrates and the cell walls of fungi which makes it one of the most abundant carbon and nitrogen sources in nature. In this study we demonstrate the ability of two Aeromonas strains, Aeromonas bestiarum and Aeromonas rivuli to efficiently grow on chitin. The secreted proteins confirm the presence of the functional hydrolytic enzymes that enable the efficient degradation and utilization of this abundant biopolymer. Further quantitative cellular proteomic study unravels the remarkable reorganization of the Aeromonas metabolism when switching to chitin as sole carbon and nitrogen source. This proves that Aeromonas is not only chitinolytic but also a chitinotrophic microorganism.

2024-12-12 | PXD047459 | Pride

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