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Molecular pendulum shuttles protons to enable rapid hydrogen production in enzymes
المصدر: Phys.org - latest science and technology news stories · نُشر
Nearly all metabolic processes require protons—positively charged hydrogen atoms. Although these are abundant in the cellular fluid, the biocatalysts involved depend on mechanisms for efficiently capturing protons and transporting them to the site where catalysis occurs. Enzymes
Nearly all metabolic processes require protons—positively charged hydrogen atoms. Although these are abundant in the cellular fluid, the biocatalysts involved depend on mechanisms for efficiently capturing protons and transporting them to the site where catalysis occurs. Enzymes from microorganisms can produce hydrogen (H₂) by combining electrons with protons.
These so-called hydrogenases are so efficient that one biocatalyst can capture nearly 10,000 protons per second.
أخبار ذات صلة
The housing gap between young people with and without wealthy parents has nearly doubled
Among 30-year-olds with parents in the wealthiest fifth of the population, nearly seven out of ten own their own home. Among those with parents in the least wealthy fifth, the figure is around four out of ten. And the difference has grown.
Phys.org - latest science and technology news stories ·
Earth's core may have been leaking hydrogen for billions of years
When Earth formed billions of years ago, its metallic core was wrapped in a global ocean of molten rock, which eventually cooled and crystallized to form the mantle. Today, when deep-rooted mantle plumes rise toward the surface and produce volcanic eruptions, the resulting lava c
Phys.org - latest science and technology news stories ·
Stratospheric airship flew from US to Japan to test sky cell tower concept
Nearly 100 years after the dirigible Graf Zeppelin made the first nonstop airship journey across the Pacific Ocean, another airship has successfully completed a round-trip flight from New Mexico to Japan and back. But the significance of this modern feat was less about the journe
Ars Technica - All content ·
Scientists are growing human brain tissue in living mice—could this make their welfare harder to assess?
What happens when scientists start changing the brain—the very system through which an animal's mental states are expressed in behavior?
Phys.org - latest science and technology news stories ·
Fully implementing methane plans could reverse emissions growth but miss 2030 target
A new study, led by IIASA researchers and coauthored by UNEP colleagues, finds that if governments fully implement their methane reduction plans, they could reduce global emissions by 11% between 2020 and 2030. This would reverse the current trend of increasing methane emissions,
Phys.org - latest science and technology news stories ·