A recent study analyzed genome-wide data from 51 ancient Eurasians, providing insights into the genetic history of modern humans in Eurasia before agriculture began. The findings indicate a decrease in Neandertal ancestry and suggest natural selection against certain variants.
The MCU structure is a homopentamer with a hydrophilic pore, featuring two carboxylate rings as the ion selectivity filter. This novel ion channel architecture suggests a passage for calcium transport.
A recent study reveals a novel crosstalk mechanism between mitochondrial translation and cytoplasmic translation, essential for spermatogenesis. The mTOR signaling pathway helps balance the dynamic between mitochondrial translation and cytoplasmic translation, preventing negative impacts on protein quality and half-life.
Researchers successfully mapped spatial distribution of excitonic coupling in well-defined arrangements of zinc-phthalocyanine molecules. They also observed enhanced single-molecule superradiance for in-line arrangements of up to four molecules.
Researchers found that part of the liver vasculature is derived from the endocardium in the developing heart, with endocardial VEGF/VEGFR2 signaling playing a crucial role in liver angiogenesis and organogenesis. The discovery provides new insights into liver development and regeneration.
A Chinese research team has developed a novel aluminum-graphite dual-ion battery offering significantly reduced weight, volume, and fabrication cost. The new battery boasts higher energy density and lower production costs compared to conventional lithium-ion batteries.
Researchers discover inhibiting cholesterol esterification enzyme ACAT1 boosts CD8+ T cells' antitumor activity. Avasimibe, a small molecule inhibitor of ACAT1, shows promising results in treating cancer and could be used as a complement to current immunotherapies.
A new bird species, Chongmingia zhengi, discovered in China's Early Cretaceous Jehol Biota, sheds light on the early evolution of birds. The species is basal to dominant Mesozoic avian clades and represents a new avialan lineage.
A team of researchers found gene flow from early modern humans into Neanderthals around 100,000 years ago. This discovery challenges previous estimates and suggests that some modern humans may have left Africa earlier than thought.
The Daya Bay Collaboration has obtained the most precise measurement of reactor antineutrino energy spectrum ever recorded, showing a surprising excess of antineutrinos at an energy of around five million electron volts. This deviation of up to four standard deviations suggests that current calculations may need refinement.