Proteins are made up of long chains of amino acids, and most proteins have one or more of the sulfur-containing amino acid methionine. Oxidation of the sulfur atom in methionine is an important biomolecular reaction that ...
Biochemistry
Apr 9, 2020
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79
Just as our left hand is not superposable to our right hand, the mirror image of certain molecules cannot be overlapped onto it, even when turned or twisted. These two mirror images are referred to by chemists as enantiomers ...
Materials Science
Dec 3, 2019
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21
Professor Takashi Ooi and his team of researchers from Nagoya University, Japan, have designed a catalyst that performs two tasks during the course of the reaction.
Materials Science
Jan 25, 2018
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10
Researchers at Nagoya University have reported in Nature Communications on the development of an organic catalyst (organocatalyst) that triggers a highly stereoselective 1,6-addition of azlactones (nucleophile) to a δ-aryl ...
Materials Science
Apr 7, 2017
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8
(Phys.org) —A new study by chemists in Switzerland is likely to change the way many stereoisomer molecules are synthesized for industrial, agricultural, or medical uses.
Despite its small size, the fluorine atom has had a vast impact on the pharmaceutical industry. More often than not, introducing fluorine to a drug molecule improves the drug's biological activity, earning it a reputation ...
Materials Science
Oct 3, 2012
1
1
(Phys.org) -- In many biological and pathological processes, glycosidase enzymes attack glycosidic bonds in carbohydrates, glycoproteins, and glycolipids. The ability to modify or block these processes by specific glycosidase ...
Biochemistry
May 29, 2012
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0
(PhysOrg.com) -- Upon testing different fragrances in a perfumery, the so-called top note, consisting of the most volatile odorants, is what characterizes a scent. These odorants determine the first and often most decisive ...
Materials Science
May 20, 2011
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0
(PhysOrg.com) -- In the pursuit of biologically active compounds, it is often necessary to be able to control the stereochemistry at predefined positions in a molecular skeleton. The search for ways to prepare chiral building ...
Biochemistry
Sep 2, 2010
0
0
