科学与环境
Simplified ancestral enzyme makes ATP without amino acid needed for its usual reaction
来源: Phys.org - latest science and technology news stories · 发布于
Proteins perform essential functions in living organisms, from catalyzing biochemical reactions to supporting cellular energy metabolism. Their functions depend on their amino acid composition and three-dimensional structures. However, early proteins may have evolved when fewer a
Proteins perform essential functions in living organisms, from catalyzing biochemical reactions to supporting cellular energy metabolism. Their functions depend on their amino acid composition and three-dimensional structures. However, early proteins may have evolved when fewer amino acid types were available than those used by most modern proteins.
相关报道
Asteroids venturing near white dwarfs don't break directly into dust, study reveals
When asteroids travel too close to white dwarfs, the dense remnants of stars that have exhausted their nuclear fuel, powerful gravitational forces can tear them apart. However, new research from Planetary Science Institute (PSI) suggests that these asteroids don't immediately bre
Phys.org - latest science and technology news stories ·
Chemical recycling turns silicone waste into reusable building blocks with up to 99% yield
Silicones are widely used in industry, medicine and everyday products due to their exceptional thermal and chemical stability. However, it is precisely these properties that have made recycling silicones extremely problematic in the past. Researchers at the Institute of Chemistry
Phys.org - latest science and technology news stories ·
Detailed images reveal ribosome assembly inside human cells for the first time
For decades, ribosomes have been under the lens of many scientists. Ribosomes are highly sophisticated and complex molecular machines that allow cells to synthesize proteins. However, putting ribosomes together requires intricate assembly processes. While many underlying mechanis
Phys.org - latest science and technology news stories ·
Study: Partisan ties shape how voters view campaign AI
As political campaigns increasingly use artificial intelligence to communicate with voters, questions arise about how the technology influences perceptions of election fairness and trust.
Phys.org - latest science and technology news stories ·
Keeping one eye open: Veterinarian applies unique treatment to preserve dog's eyesight
Aparna Shah teaches Virginia Tech students how the human eye turns light into sight. In May, she saw her dog lose his.
Phys.org - latest science and technology news stories ·