Japanese astronauts deliver an aquarium to the International Space Station to study the effects of microgravity on marine life.
Japanese astronauts deliver an aquarium to the International Space Station to study the effects of microgravity on marine life.
Present in every tissue of the body, ubiquitin appears to be involved in a dizzying array of functions, from cell cycle and division to organelle and ribosome biogenesis, as well as the response to viral infection. The protein plays at least two role
Senior Investigator, Samuel Lunenfeld Research Institute, Toronto, Ontario, Canada. Age 40
More than simply helping haul out a cell’s garbage, ubiquitin, with its panoply of chain lengths and shapes, marks and regulates many unrelated cellular processes.
Despite its discovery as a protein that seems to show up everywhere, at least in eukaryotic cells, researchers are only beginning to scratch the surface of all of the cellular functions involving ubiquitin. As a monomer, ubiquitin can bind and tag ot
Actin filaments respond to pressure by forming branches at their curviest spots, helping resist the push.
Germline stem cells discovered in human ovaries can be cultured into fresh eggs.
Human-specific duplications of a gene involved in brain development may have contributed to our species’ unique intelligence.
Human embryonic stem cells swiftly kill themselves in response to DNA damage.
Genes that react to cellular sugar content are regulated by a long non-coding RNA via an unexpected mechanism