Stem cell physical
Looking at stem cells through physicists' eyes is challenging some of our basic assumptions about the body's master cells.
Start signal for transcription of stressed genes identified
What happens when a cell is stressed? In their latest study, Christian Seiser and his team at the Max F. Perutz Laboratories (MFPL) of the University of Vienna and the Medical University of Vienna addressed ...
How bacteria evolve defenses to antibiotics
High-resolution cryo-electron microscopy has now revealed in unprecedented detail the structural changes in the bacterial ribosome which results in resistance to the antibiotic erythromycin.
First pictures of BRCA2 protein show how it works to repair DNA
Scientists have taken pictures of the BRCA2 protein for the first time, showing how it works to repair damaged DNA.
Identifying the many layers of a bug's design
(Phys.org) —Lawrence Livermore researchers have discovered additional "coats," or layers, of a bacterium spore found in the human gut that may give clues to how this organism develops, spreads and survives ...
Scientists manipulate split proteins to detect interactions in living cells
(Phys.org) —Rice University scientists have developed a plug-and-play approach to detect interactions between proteins they say could greatly improve understanding of basic biological functions.
Researchers find animals killed by anthrax leave behind enticing grasses for herbivores, allowing disease to spread
What happens when good genes get lost?
Scientifically speaking, there is no bad DNA, though we like to blame it for unruly hair, klutziness or poor gardening skills. There is, however, junk DNA.
Breakthrough study discovers six changing faces of 'global killer' bacteria
Every ten seconds a human being dies from Streptococcus pneumoniae infection, also known as pneumococcus, making it a leading global killer.
New database provides vast trove of genetic information on tiny single-celled organisms in the ocean
The ocean holds a bewildering array of microscopic life. Many of the smaller organisms are difficult to study or even to identify under a microscope. For this reason, scientists often look at the genes of ...
Technique reveals the metabolic state of individual algal cells
Photosynthetic microorganisms such as single-cell algae are currently undergoing intensive research for their potential to produce oil and other products from biomass as a means of curbing the use of fossil ...
At dusk and dawn: Scientists pinpoint biological clock's synchronicity
Scientists have uncovered how pacemaker neurons are synchronized at dusk and dawn in order to maintain the proper functioning of their biological clocks. Their findings, which appear in the journal PLOS Biology, enhance our un ...
Research shows viral DNA infects cells by changing from solid to fluid-like state
Many double-stranded DNA viruses infect cells by ejecting their genetic information into a host cell. But how does the usually rigid DNA packaged inside a virus' shell flow from the virus to the cell?
Scientists identify key factor that maintains stem cell identity
A protein implicated in several cancers appears to play a pivotal role in keeping stem cells in an immature "pluripotent" state, according to a new study by NYU Langone Medical Center scientists. The study ...