Model systems based on virus capsids have shown how large biomolecules are able to penetrate a cell nucleus / The larger the molecule, the more nuclear localization signals are needed A new study in ...

Different as the cells from animals, plants, fungi and protozoa can be, they all share one prominent feature: a nucleus. They have other organelles, too, like the energy-producing mitochondria, but ...

Long-term potentiation (LTP) is defined as a long-lasting increase in the magnitude of the synaptic response of a neuron following a short train of high-frequency afferent stimulation or similar ...

Sleep spindle oscillations consist of waxing–and–waning field potentials of 7 to 14 Hz, which last 1 to 3 seconds and recur every 5 to 15 seconds. These oscillations are generated in the thalamus by ...

In human cells, there are about 20,000 genes on a two-meter DNA strand—finely coiled up in a nucleus about 10 micrometers in diameter. By comparison, this corresponds to a 40-kilometer thread packed ...

Model for the organization of the genome in the nucleus. The rope symbolizes the DNA and the clamps are protein complexes that include the protein lamin A and can cross-link DNA. Disclaimer: AAAS and ...