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Molekula Details Strategies for Isotopically Labelled Nucleotide Supply Chain Resilience Amid Geopolitical Tensions

Molekula Details Strategies for Isotopically Labelled Nucleotide Supply Chain Resilience Amid Geopolitical Tensions

Molekula Details Strategies for Isotopically Labelled Nucleotide Supply Chain Resilience Amid Geopolitical Tensions

Glycolysis Metabolic Pathway Quiz Explores Cellular Respiration Concepts

Glycolysis Metabolic Pathway Quiz Explores Cellular Respiration Concepts

A quiz focusing on the glycolysis metabolic pathway is available, designed to enhance understanding of cellular respiration. This educational tool covers key concepts such as ATP consumption and the roles of various enzymes involved in the process. The quiz delves into questions like the starting molecule of glycolysis, the number of ATP molecules consumed during the energy investment phase, and the enzyme responsible for the major regulatory step. It also explores how aldolase splits fructose-1,6-bisphosphate and why certain reactions occur twice. Furthermore, the quiz addresses the process of ATP production in specific reactions and the role of NAD+ in electron acceptance.

Longest Feather in Amber Reveals Stepwise Evolution of Flight

Longest Feather in Amber Reveals Stepwise Evolution of Flight

Researchers have discovered the longest three-dimensionally preserved pennaceous feather in Burmese amber, dating back approximately 99 million years to the Cenomanian age of the Cretaceous period. Catalogued as ECNU A0033, the specimen measures about 105 mm, with an estimated original length exceeding 140 mm. This feather, analyzed by Professor Shuo Wang and colleagues from East China Normal University, exhibits two roughly symmetrical vanes made of densely packed barbs, resembling modern flight-related feathers. However, closer examination revealed significant differences: the barbules, which normally connect neighboring barbs, lack hooklets, meaning the vanes could not form the continuous, interlocking surface characteristic of modern feathers. Additionally, the feather's central shaft, or rachis, was structurally incomplete with an open underside, suggesting greater flexibility under airflow compared to modern solid shafts. This finding challenges the assumption that an elaborate, symmetrical feather n...

Cornell Faculty Member Gunther Hollopeter Advances Research on Membrane-Associated Protein Complexes

Cornell Faculty Member Gunther Hollopeter Advances Research on Membrane-Associated Protein Complexes

Gunther Hollopeter, an associate professor in molecular medicine at Cornell University, is leading research focused on understanding the intricate functions of membrane-associated protein complexes. His team utilizes C. elegans genetics, live imaging, and biochemical assays to investigate these cellular mechanisms. A significant discovery from his lab includes identifying two protein classes, NECAPs and muniscins, which play opposing roles in regulating the clathrin adaptor complex AP2 during endocytosis. These allosteric modulators are crucial for understanding how cells selectively internalize endocytic sites and cargo. Hollopeter completed his undergraduate studies at the University of Washington and earned his Ph.D. at the University of California, San Francisco, before joining Cornell's faculty in 2015.

NIH Implements New Disclosure Requirement for Monetary Donations in Research

NIH Implements New Disclosure Requirement for Monetary Donations in Research

The National Institutes of Health (NIH) has introduced a new requirement for investigators to disclose monetary donations in their Current and Pending Other Support Form, as outlined in the 2026 Grants Policy Statement. This mandate applies to donations given to an institution for use by named senior/key personnel that support their research activities, particularly when there's an expectation from the donor for specific use (e.g., pediatric cancer research) and requests for periodic scientific or financial updates. Investigators must disclose donations received within the past year where the supported activities are ongoing. The disclosure requires specific details such as the title of the donation, source of support, primary place of performance, start and end dates, total anticipated amount, and a brief statement of overall objectives, including any potential overlap with NIH-funded projects.

NIH Centralizes Grant Application Review Process, Responding to 2025 Shutdown Disruptions

NIH Centralizes Grant Application Review Process, Responding to 2025 Shutdown Disruptions

The National Institutes of Health (NIH) has centralized its grant application review process within the Center for Scientific Review (CSR), effective June 1, 2025. This change means that CSR now manages the review of all NIH grant applications, a significant shift from the previous system where CSR handled 77% of applications and 23% were managed by individual NIH institute and center (IC) review branches. The centralization was announced on March 6, 2025, and was fully implemented within three months. This move follows disruptions experienced during a 43-day shutdown in 2025, which led to the cancellation of over 500 meetings and required an emergency review measure. During this emergency, only about one-third of applications were discussed, with another third labeled 'Competitive but not discussed,' and institutes considered the top two-thirds for funding. The CSR's role remains focused solely on organizing peer review, with funding decisions still resting with the individual NIH institutes and centers.

Dr. Drew Weissman's Discoveries in mRNA Technology Lead to Nobel Prize and New Therapeutic Applications

Dr. Drew Weissman's Discoveries in mRNA Technology Lead to Nobel Prize and New Therapeutic Applications

Dr. Drew Weissman, an American physician and immunologist, was awarded the 2023 Nobel Prize in Physiology or Medicine alongside Katalin Karikó for their discoveries concerning RNA modifications that enabled effective mRNA vaccines against COVID-19. Weissman's career began with studies on HIV interactions with immune cells before he collaborated with Karikó in the late 1990s, leading to their seminal 2005 study on modified nucleosides and immune recognition. Their work continued, demonstrating the advantages of incorporating pseudouridine into mRNA for greater protein production and biological stability, and later addressing issues of double-stranded RNA contaminants. Beyond COVID-19, Weissman has contributed to research on mRNA Zika vaccines and a universal influenza vaccine. His work also extends to cell reprogramming, with studies using mRNA to generate temporary CAR T cells for cardiac fibrosis and delivering mRNA to hematopoietic stem cells for conditions like sickle-cell disease. He is a founding scie...

Global Experts Uncover New Cambrian Fossil Trove in Central China's Hunan Province

Global Experts Uncover New Cambrian Fossil Trove in Central China's Hunan Province

An international team of over 160 scholars and researchers from China, the United States, Canada, and Russia has concluded joint fieldwork and academic discussions on a newly discovered Cambrian fossil site in Hunan Province, central China. This site, known as the Huayuan biota, has yielded over 50,000 fossil specimens, with 153 identified animal species, nearly 60% of which are new to science. The research, led by CAS academician Zhu Maoyan, was published in the journal Nature earlier this year. The Huayuan biota is chronologically positioned between the peak of the Cambrian explosion (represented by the Chengjiang biota) and the later Burgess Shale, documenting marine life immediately following the Sinsk mass extinction. The Xiangxi region, where the site is located, was a deep-marine slope environment over 500 million years ago, providing exceptional conditions for preserving fine anatomical details of soft-bodied organisms. This discovery challenges previous assumptions that marine life was scarce afte...

Cellophane Bees Inspire Research for Biodegradable Plastics

Cellophane Bees Inspire Research for Biodegradable Plastics

Researchers from Virginia Tech, the University of Tennessee, and the University of Minnesota have discovered that the plastic-like lining produced by cellophane bees breaks down in ordinary soil within months. This natural material, which resembles polyethylene, offers a potential solution to the challenge of creating durable yet biodegradable plastics. The findings, published in the Proceedings of the National Academy of Sciences, indicate that the bee's polyester lining, despite its structural similarities to human-made plastics that persist for centuries, degrades significantly faster. The team studied nests of the unequal cellophane bee (Colletes inaequalis), a common North American species, and observed that the linings remained intact for about four months, then cracked by seven months, and crumbled within approximately a year. This rapid degradation is unexpected given the material's semicrystalline nature and chemical cross-links, features typically associated with slower breakdown in synthetic pla...

UC Santa Cruz Researchers Discover New Cancer Cell Division Mechanism Involving E2F1 Gene

UC Santa Cruz Researchers Discover New Cancer Cell Division Mechanism Involving E2F1 Gene

Researchers at the University of California, Santa Cruz (UCSC), have identified a novel shortcut mechanism in cancer cell division involving the E2F1 gene. Published in The EMBO Journal, the study reveals that E2F1 can trigger cell division without the typical requirement of unpacking the cell's genetic material. Instead, E2F1 directly binds to a small, tightly packaged area of DNA, initiating the division process. This discovery was made by Associate Professor of Biomolecular Engineering Ali Shariati and Professor of Chemistry & Biochemistry Seth Rubin, with former BME postdoctoral scholar Gerrald Lodewijk leading the project. Their research focuses on how cells regulate division and the role of cancer-related genes. The team observed that E2F1's activation can cause dormant cells to divide even without external growth signals, a process that occurs much faster than conventional cell division. This shortcut method allows cells to divide up to three times without additional signals, suggesting a potential ...

Stony Brook University Alumni Research Reveals Link Between Bat Longevity, Virus Adaptation, and Cancer Resistance

Stony Brook University Alumni Research Reveals Link Between Bat Longevity, Virus Adaptation, and Cancer Resistance

A team of Stony Brook University alumni, including Elise Lauterbur, Tanya Lama, and Bill Thomas, has published research in the journal Nature exploring the molecular underpinnings of bat longevity, virus adaptation, and cancer resistance. Their study focused on the Myotis genus of bats, known for their extraordinary lifespans relative to their body size and unique immune tolerances. The researchers found that genes associated with virus adaptation, viral interactions, and immunity are often the same genes linked to extreme longevity and cancer resistance. This intersection suggests a pleiotropic relationship, where adaptations for one process, such as viral defense, also contribute to others, like extended lifespan and cancer avoidance. The findings challenge the traditional view of these biological processes as separate, indicating a deep intertwining at the genetic level.

Wyss Institute Researchers Develop DNA Nanoswitch Platform for Faster Drug Discovery

Wyss Institute Researchers Develop DNA Nanoswitch Platform for Faster Drug Discovery

Researchers at the Wyss Institute at Harvard University, Boston Children's Hospital, and Harvard Medical School (HMS) have developed a new drug discovery platform called FIND (Functional Interaction-based Nanoswitch Discovery). This platform utilizes DNA nanoswitches to identify drug candidates that modulate binding interactions between two proteins, offering a significant advantage over conventional screening methods that primarily focus on binding to a single target protein. The FIND platform builds on earlier DNA nanoswitch technology developed by senior author Wesley Wong, Ph.D., and his team. It works by attaching a candidate drug molecule to each nanoswitch, which can switch between linear and looped shapes depending on protein-protein interactions. This allows for ultrahigh-throughput screening of large compound libraries, as demonstrated in a study published in Science, where FIND was used to discover small molecules and nanobodies that promote specific protein-protein interactions relevant to vari...