Glucagon receptor structures uncover new arrestin interaction mechanism
G protein-coupled receptors (GPCRs) are essential for cell signal transduction and constitute the largest drug target protein family. Upon agonist stimulation, these receptors activate multiple downstream transducers, including G proteins and arresti.....»»
Male or female? Scientists discover the genetic mechanism that determines sex development in butterflies
Scientists of the Biology Centre, Czech Academy of Sciences, in collaboration with University of Liverpool have found the genetic mechanism that determines whether individuals of the butterfly species Bicyclus anynana become male or female......»»
Mayans burned and buried dead political regimes
After burning, the remains were dumped in construction fill. Enlarge / Mayans built impressive structures and occasionally put interesting items in the construction fill. (credit: Dr. Jürgen Tenckhoff) As civilizations.....»»
Novel chemical tool for understanding membrane remodeling in the cell
In a study published in Proceedings of the National Academy of Sciences, Umeå researchers describe a natural product-like molecule, Tantalosin, that inhibits interaction between two proteins in complexes that reshape membranes inside the cell......»»
New discovery of a mechanism that controls cell division
Researchers at Umeå University, Sweden, have discovered that how a special protein complex called the Mediator moves along genes in DNA may have an impact on how cells divide. The discovery may be important for future research into the treatment of.....»»
Maximum-severity GitLab flaw allowing account hijacking under active exploitation
The threat is potentially grave because it could be used in supply-chain attacks. Enlarge A maximum severity vulnerability that allows hackers to hijack GitLab accounts with no user interaction required is now under act.....»»
Study unveils 3D printing PQD-polymer architectures at room temperature
A technology enabling the fabrication of intricate three-dimensional (3D) quantum dot (QD)-based structures at room temperature has been developed......»»
Study: Airway hillocks challenge our understanding of lung biology
Airway hillocks are mysterious, flat-topped structures that were only recently identified within regular lung tissue, and their role in airway biology and pathology has previously been unknown......»»
Discovery of mechanism plants use to change seed oil could impact industrial, food oils
Researchers have discovered a new mechanism of oil biosynthesis and found a way to genetically engineer a type of test plant to more efficiently produce different kinds of seed oil that it otherwise wouldn't make......»»
Adaptation of photosynthetic mechanism in air plants occurs through gene duplication, study finds
Researchers at the University of Vienna, along with collaborators from France, Germany, Switzerland and the U.S., have achieved a breakthrough in understanding how genetic drivers influence the evolution of a specific photosynthesis mechanism in Till.....»»
NASA lays out how SpaceX will refuel Starships in low-Earth orbit
"The fundamental flow mechanism is the pressure delta across the umbilical." Enlarge / Artist's illustration of two Starships docked belly-to-belly in orbit. (credit: SpaceX) Some time next year, NASA believes SpaceX wi.....»»
Microgravity-grown crystals reveal new insights into protein structures
Biochemists have long been working around a blind spot when it comes to proteins. They know that hydrogen constitutes nearly half of the atoms in proteins, but how they contribute to protein function in these complex structures has been less clear. H.....»»
New study reveals mystery of decaying exoplanet orbits
A new study led by researchers at Durham University has uncovered a novel mechanism that could solve a long-standing mystery about decaying planetary orbits around stars like our sun......»»
New structures offer insight into how a bacterial motor powers bacterial chemotaxis, a key infectious process
Bacteria existed for millennia before humans and have been infecting us from the beginning. Although we can treat infections through pharmaceuticals, bacteria continue to become resistant to treatment thanks to their rapid evolution. Bacterial infect.....»»
Molecular mechanism of CmoDREB2A and CmoNAC1 in pumpkin regulating the salt tolerance of grafted cucumber revealed
In February 2024, a research article titled "Pumpkin CmoDREB2A enhances salt tolerance of grafted cucumber through interaction with CmoNAC1 to regulate H2O2 and ABA signaling and K+/Na+ homeostasis" was published by Professor Zhilong Bie's team from.....»»
School athletic director arrested for framing principal using AI voice synthesis
Police uncover plot to defame principal with AI-generated racist and antisemitic comments. Enlarge (credit: Getty Images) On Thursday, Baltimore County Police arrested Pikesville High School's former athletic director, D.....»»
Synthesis of two new carbides provides perspective on how complex carbon structures could exist on other planets
Researchers at the University of Bayreuth have gained new insights in the field of high-pressure carbon chemistry: They synthesized two new carbides—compounds of carbon and another chemical element—with unique structures. The results may provide.....»»
Freeze casting—a guide to creating hierarchically structured materials
Freeze casting is an elegant, cost-effective manufacturing technique to produce highly porous materials with custom-designed hierarchical architectures, well-defined pore orientation, and multifunctional surface structures. Freeze-cast materials are.....»»
Mechanism of grafting Prunus sp. to control crown gall disease by regulating the rhizosphere environment
Grafting is a traditional and significant strategy to suppress soil-borne diseases, such as the crown gall disease caused by tumorigenic Agrobacterium and Rhizobium. Root exudates and the rhizosphere microbiome play critical roles in controlling crow.....»»
Researchers discover mechanism regulating bud dormancy release in tree peony
In perennial woody plants, bud endodormancy is crucial for survival under adverse environmental conditions in winter, such as low temperature (LT) and dehydration stress. To break bud dormancy is essential for the resumption of bud growth and floweri.....»»
Researchers uncover "parallel universe" in tomato genetics
In a paper appearing in Science Advances, Michigan State University researchers have unraveled a surprising genetic mystery centered on sugars found in what gardeners know as "tomato tar.".....»»