James E Gomez, Benjamin B Kaufmann-Malaga ... Deborah T Hung
Mutations in several components of a bacterial ribosome are shown to broadly decrease antibiotic and stress sensitivity, and readily accessible reversion mutations allow these ribosomal mutations to serve as stepping stones to high level antibiotic resistance.
Jacob M Garrigues, Brian V Tsu ... Amy E Pasquinelli
Helitron transposable elements, by providing high density transcription factor binding sites upstream of host genes, have diversified the heat shock response within and among Caenorhabditis species.
Polona Safaric Tepes, Debjani Pal ... Raffaella Sordella
Erlotinib-resistant AXL overexpressing cells are present in therapy-naive tumors, and expression of AXL in these cells is regulated through a stochastic mechanism centered on the epigenetic regulation of miR-335.
Alfonso Santos-Lopez, Christopher W Marshall ... Vaughn S Cooper
Bacteria growing in biofilms evolve antimicrobial resistance via different pathways and generate greater genetic diversity than well-mixed populations, selecting fitter but less resistant genotypes.
Mohammed Mostafizur Rahman, Ashutosh Shukla, Sumantra Chattarji
When the fear-enhancing effects of prior exposure to stress are absent, the expression of fear reflects normal neural activity in the medial prefrontal cortex, not stress-induced hyperactivity in the amygdala.