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Why you really shouldn't overcook your proteins

The development of cooking was a major milestone in the evolution of human civilization because it made food easier to digest and more energy-efficient. Heating food can also kill harmful pathogens and make certain foods taste better. Overcooking, on the other hand, can have adverse effects, particularly on proteins.

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Without bacteria or chemicals: How methanol and formaldehyde form abiotically in nature

The biopolymer lignin—one of the most important carbon reservoirs in plants and soils—not only decays through fungi or bacteria but can also be chemically attacked by iron linked to reactive oxygen species, without the involvement of microorganisms. When this happens, lignin is converted into methanol and subsequently into formaldehyde. That is shown by a study conducted at Heidelberg University's Institute of Earth Sciences.

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A 25,000-Year-Old Drug Habit Was Hidden in Ancient Teeth

CPL 2a SkeletonAncient teeth suggest humans were using psychoactive betel nuts 25,000 years ago, pushing the history of habitual drug use deep into the Ice Age. Archaeologists from Griffith University have found evidence suggesting that humans were using mind-altering substances far earlier than previously believed. The research team, led by Professor Adam Brumm of Griffith’s Australian Research [...]
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A Century-Old Mystery in Cat Kidneys May Finally Have an Answer

Bengal Cat Eyes CloseLipid droplets in the kidneys may help cats maintain a consistent chemical “scent identity.” Scent marks can linger long after an animal has moved on, allowing urine and other chemical signals to carry information across both distance and time. Yet the molecules responsible for odor do not remain unchanged. They evaporate, break down, and shift [...]
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First PLP-dependent enzyme that influences bacterial protein production discovered

Researchers from the Singapore-MIT Alliance for Research & Technology's (SMART) Antimicrobial Resistance (AMR) interdisciplinary research group, alongside collaborators from Massachusetts Institute of Technology (MIT), Nanyang Technological University (NTU Singapore), and institutions in the United States, Poland and France, have discovered aminovaleramididine synthetase (AvaS), the first identified pyridoxal phosphate (PLP)-dependent enzyme responsible for producing a chemical modification linked to how bacteria respond to metabolic stress.

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Origin of Life Would Not Have Been Favored Solely by Fortuitous Circumstances: Scientists Discover Early Earth’s Volcanic Rocks Contained Reactive Phosphorus

For more than seven decades, phosphorus has represented one of the great paradoxes in the study of the origin of life. This element, indispensable for the existence of living beings as we know them, forms the structural backbone of DNA and RNA, allows cells to store and transfer energy through the molecule adenosine triphosphate (ATP), […]

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Engineered enzymes forge carbon-carbon and carbon-nitrogen bonds with high selectivity

Researchers from the Manchester Institute of Biotechnology, including Dr. Zachary Birch-Price and professor Anthony Green, have developed a new family of engineered enzymes that can create several different types of chemical bonds used to build complex molecules. This work demonstrates how artificial enzymes can be adapted to carry out a broad range of carbon-carbon (C-C) and carbon-nitrogen (C-N) bond-forming reactions with high selectivity, offering new possibilities for biocatalysis.

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Engineered enzymes forge carbon-carbon and carbon-nitrogen bonds with high selectivity

Researchers from the Manchester Institute of Biotechnology, including Dr. Zachary Birch-Price and professor Anthony Green, have developed a new family of engineered enzymes that can create several different types of chemical bonds used to build complex molecules. This work demonstrates how artificial enzymes can be adapted to carry out a broad range of carbon-carbon (C-C) and carbon-nitrogen (C-N) bond-forming reactions with high selectivity, offering new possibilities for biocatalysis.

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Our Most Dangerous Labs Have a Problem No One Wants to Fix

A worker at a US government lab got bitten by a monkey carrying a deadly virus, and it turned out nobody knew what to do about it. Around the same time, someone from the same lab tried to smuggle outbreak samples into the country. All of this while everyone's worried about AI making bioweapons. Let's take a look.

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