Before it can fertilize an egg, a sperm has to bind to and bore through an outer egg layer known as the zona pellucida. Despite decades of research, some of the biological mechanisms behind this process remain unclear. A ...
Cell & Microbiology
Jun 16, 2014
0
0
(Phys.org) —Microbes are not only a rich source of disease, but also a rich source of medicines, and experts think many life-saving compounds produced by as-yet-unnamed bacteria are awaiting discovery. But they don't always ...
Cell & Microbiology
May 19, 2014
0
0
(Phys.org) —Stem cells switch off and on, sometimes dividing to produce progeny cells and sometimes resting. But scientists don't fully understand what causes the cells to toggle between active and quiet states.
Cell & Microbiology
May 9, 2014
0
0
(Phys.org) —A football-shaped structure, known as the mitotic spindle, makes cell division possible for many living things. This piece of cellular architecture, responsible for dividing up genetic material, is in constant ...
Cell & Microbiology
Apr 16, 2014
0
0
(Phys.org) —A young animal's genes are not the only genes that determine its fate. The genetic identity of its caretakers matters too. Researchers suspect the interaction between the two can sway the fate of the young animal, ...
Plants & Animals
Apr 11, 2014
0
0
It may seem like mosquitoes will bite anything with a pulse, but they're actually quite strategic in picking their victims. A new study from The Rockefeller University looked at the interaction of different sensory cues—carbon ...
Cell & Microbiology
Feb 28, 2014
0
8
Senescent cells, which are metabolically active but no longer capable of dividing, contribute to aging, and senescence is a key mechanism for preventing the spread of cancer cells. A study in The Journal of Cell Biology identifies ...
Cell & Microbiology
Dec 16, 2013
0
0
(Phys.org) —What draws a mosquito to bite its host has long been studied from the perspective of the victim—uncovering which smells and chemicals lure the insect in. But researchers at Rockefeller's Laboratory of Neurogenetics ...
Cell & Microbiology
Jun 10, 2013
0
0
A mutant protein responsible for Hutchinson-Gilford Progeria syndrome (HGPS) bars large proteins from entering the nucleus, according to a study in The Journal of Cell Biology.
Cell & Microbiology
May 6, 2013
0
0
(Phys.org) —Proteins, unlike diamonds, aren't forever. And when they wear out, they need to be degraded in the cell back into amino acids, where they will be recycled into new proteins. Researchers at Rockefeller University ...
Cell & Microbiology
Apr 26, 2013
0
0
