The discovery changes our understanding of the basic mechanism of photosynthesis and should rewrite the textbooks. It will also tailor the way we hunt for alien life and provide insights into how we could engineer more efficient crops that take advantage of longer wavelengths of light.
Researchers from the IBB-UAB fabricate four molecules of only seven amino acids with the ability to self-assemble and rapidly and inexpensively form nanomaterials for biomedical and nanotechnological purposes. Inspired on a type of natural assembly seen in amyloid fibers, four peptides were used to create one of the most resistant bionanomaterials described to date, nanocables and mini enzymes to act as a catalyst for the formation of nanomaterials.
Researchers at the Stowers Institute for Medical Research have captured the one cell that is capable of regenerating an entire organism.
Recent articles in the Journal of Lipid Research investigate how brown fat converts to white, how cells in the liver fill fat droplets, and how eating a ketogenic or calorie-restricted diet may change a mouse's metabolism.
Fats are essential for our body. The core components of all fats are fatty acids. Their production is initiated by the enzyme ACC. Researchers at the University of Basel's Biozentrum have now demonstrated how ACC assembles into distinct filaments. As the researchers report in "Nature," the type of filament formed controls the activity of the enzyme and thus fatty acid production.
Researchers have revealed how the human nuclear pore complex is involved in the flow of genetic information.
Research led by Kuhan Chandru and Jim Cleaves from the Earth-Life Science Institute at Tokyo Institute of Technology, Japan, has shown that reactions of alpha-hydroxy acids, similar to the alpha-amino acids that make up modern proteins, form large polymers easily under conditions presumed prevalent on early Earth. These alpha-hydroxy acid polymers may have aided in the formation of living systems on early Earth.
Sleep need accumulates over long periods awake, and sleep refreshes the brain. Little is known, however, of the molecular mechanisms underpinning sleep need. Using two mouse models of increased sleep need, researchers found the phosphorylation of an identifiable set of mostly synaptic proteins (SNIPPs) increases while awake and dissipates with sleep. This provides evidence that the phosphorylation/dephosphorylation cycle of SNIPPs may be one major way the brain regulates sleep-wake homeostasis.
Rare earth elements (REEs) are an indispensable component of the digital technologies that are now an integral part of our everyday life. Yet their biological role has been discovered only recently. A few years ago it became apparent that these metals are essential elements for methano- and methylotrophic bacteria. One representative is the bacterium Methylacidiphilum fumariolicum SolV, which was found in a volcanic mudpot near Naples, Italy, and is known to be strictly dependent on REEs such as lanthanum and cerium for its growth.
Scientists have found a new way to trawl blood samples for snippets of RNA released by tumors or diseased organs. The method might eventually help doctors diagnose and track a wide range of medical conditions.