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24 Current news about the topic enzymes

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Potential for a green energy economy based on hydrogen

First Characterization of a Sensory [FeFe] Hydrogenase

11-Jan-2018

Hydrogenases are enzymes capable of making hydrogen gas (H2) using protons from water, a reaction with relevance to a potential future green energy economy based on H2. Bacteria containing these enzymes often produce H2 as a waste product during sugar metabolism in the absence of oxygen. ...

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Less chewing the cud, more greening the fuel

09-Jan-2018

Plant biomass contains considerable calorific value but most of it makes up robust cell walls, an unappetising evolutionary advantage that helped grasses to survive foragers and prosper for more than 60 million years. The trouble is that this robustness still makes them less digestible in the ...

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Spaghetti-like, DNA 'noodle origami' the new shape of things to come for nanotechnology

18-Dec-2017

For the past few decades, scientists have been inspired by the blueprint of life, DNA, as the shape of things to come for nanotechnology. This burgeoning field is called DNA origami. Scientist borrowed its moniker from the paper artists who conjure up birds, flowers and planes from imaginatively ...

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Researchers fold a protein within a protein

15-Nov-2017

A team from the NUS Yong Loo Lin School of Medicine (NUS Medicine) has invented a fundamentally new way of folding and protecting recombinant proteins. Sourced from the rapidly expanding field of synthetic biology, this protein-in-a-protein technology can improve functional protein yields by ...

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Potential 'missing link' in chemistry that led to life on earth found

08-Nov-2017

Chemists at The Scripps Research Institute (TSRI) have found a compound that may have been a crucial factor in the origins of life on Earth. Origins-of-life researchers have hypothesized that a chemical reaction called phosphorylation may have been crucial for the assembly of three key ...

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Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

18-Oct-2017

Scientists at the Department of Energy's Oak Ridge National Laboratory have performed neutron structural analysis of a vitamin B6-dependent protein, potentially opening avenues for new antibiotics and drugs to battle diseases such as drug-resistant tuberculosis, malaria and ...

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Multifunctional catalyst for poison-resistant hydrogen fuel cells

28-Jun-2017

Japanese collaboration develops catalyst that can oxidize both hydrogen and carbon monoxide to produce energy Demand for eco-friendly fuel sources is increasing as the goal of weaning off our reliance on fossil fuels becomes commonly recognized. Hydrogen represents a possible sustainable fuel ...

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Researchers Imitate Molecular Crowding in Cells

02-Mar-2017

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. The results are offering better insight into the ...

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Flipping the switch on ammonia production

07-Feb-2017

Nearly a century ago, German chemist Fritz Haber won the Nobel Prize in Chemistry for a process to generate ammonia from hydrogen and nitrogen gases. The process, still in use today, ushered in a revolution in agriculture, but now consumes around one percent of the world's energy to achieve the ...

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Bioluminescent sensor causes brain cells to glow in the dark

31-Oct-2016

The probe, which was developed by a team of Vanderbilt scientists, is a genetically modified form of luciferase, the enzyme that a number of other species including fireflies use to produce light. The scientists created the technique as a new and improved method for tracking the interactions ...

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