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114 Current news about the topic amino acids

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Optimized Binding Cavity

Directed evolution of a designer enzyme with an unnatural catalytic amino acid

05-Feb-2019

The impressively high conversion rates of natural enzymes partly result from increasing the catalytic activity of a selected few amino acid side chains through precise positioning within the protein binding cavity. Scientists have now demonstrated that such fine-tuning is also possible for ...

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Chirality in 'real-time'

Circular dichroism in the deep ultraviolet

11-Jan-2019

In nature, certain molecules with the same chemical composition, can exist in two different shapes that are mirrors images of each other, much like our hands. This property is known as "chirality" and molecules with different chirality are called enantiomers. Enantiomers can exhibit entirely ...

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Common table salt may have been crucial for the origins of life

30-Nov-2018

One of the most fundamental unexplained questions in modern science is how life began. Scientists generally believe that simple molecules present in early planetary environments were converted to more complex ones that could have helped jumpstart life by the input of energy from the environment. ...

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A natural product that could lead to new class of commercial herbicide and drugs

The weed killer could potentially be used to find new drugs for antibacterial medicines.

17-Jul-2018

A garden can be a competitive environment. Plants and unseen microorganisms in the soil all need precious space to grow. And to gain that space, a microbe might produce and use chemicals that kill its plant competitors. But the microbe also needs immunity from its own poisons. By looking for that ...

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'Tricking' bacteria into hydroxylating benzene

15-Jun-2018

Breaking carbon-hydrogen bonds is notoriously difficult in lab chemistry, yet nature does it effortlessly. Now, scientists have used E.coli bacteria to oxidize the C-H bonds in benzene to generate phenol, with a genetically inserted enzyme (cytochrome P450BM3), that originally evolved to target ...

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Evonik to close its Kaba site in Hungary

09-Apr-2018

Evonik will stop its amino acid production at its Hungarian Kaba site by the end of April 2018. There Evonik Agroferm Zrt., a subsidiary of Evonik, currently employs about 120 people. The decision was prompted by intense and increasing competition in the market for the amino acid L-threonine, ...

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A plausible recipe for early life on Earth

09-Jan-2018

Chemists at The Scripps Research Institute (TSRI) have developed a fascinating new theory for how life on Earth may have begun. Their experiments demonstrate that key chemical reactions that support life today could have been carried out with ingredients likely present on the planet four billion ...

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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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Biesterfeld International expands to France

03-Mar-2017

With effect from 1st March 2017, Biesterfeld International will strengthen its business activities in France and show its presence in the country. Sales activities will be expanded and strategically developed in a focused process from the existing Biesterfeld Group location in Rueil-Malmaison, ...

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Good vibrations help reveal molecular details

17-Feb-2017

Five years of hard work and a little "cosmic luck" led Rice University researchers to a new method to obtain structural details on molecules in biomembranes. The method by the Rice lab of physicist Jason Hafner combines experimental and computational techniques and relies on the plasmonic ...

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