Two common mutant versions of estrogen receptor alpha achieve constitutive activity and hormone-resistance by preferentially adopting a suite of conformations that expose the coregulator-binding surface.
Drosophila has almost all transcription factor binding specificities available to humans; and human transcription factors with divergent specificities operate in cell types that are not found in fruit flies.
The causal link between capillary amyloid‑β accumulation in the brain and cerebrovascular dysfunction, previously established in the Tg‑SwDI mouse model, is to be mitigated and remains to be fully uncovered.
Reconstruction of great auk population dynamics suggests that hunting pressure alone could have been responsible for their extinction, demonstrating that even abundant, widespread species can be vulnerable to intense exploitation.
Natural step-to-step variations show how human running is stabilized, underscoring the importance of center of mass control and showing how humans run without falling despite muscle noise and uneven terrain.
Stochastic tuning of gene expression could be a common mechanism through which eukaryotic cells adapt to challenging external environments, potentially including survival of infectious organisms within the host and adaptation of cancer cells to chemotherapy.
In humans, specific sequence features can predict whether meiotic recombination occurs at sites bound by the protein PRDM9, whose DNA-binding zinc-finger domain can unexpectedly bind to gene promoters and to other copies of PRDM9.