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NIH Shift
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Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An NIH shift is a chemical rearrangement where a hydrogen atom on an aromatic ring undergoes an intramolecular migration primarily during a hydroxylation reaction. This process is also known as a 1,2-hydride shift. These shifts are often studied and observed by isotopic labeling. In this example, a hydrogen atom has been isotopically labeled using deuterium (shown in red). As the hydroxylase adds a hydroxyl (the -OH group), the labeled site shifts one position around the aromatic ring relative to the stationary methyl group (-CH3). Several hydroxylase enzymes are believed to incorporate an NIH shift in their mechanism, including 4-hydroxyphenylpyruvate dioxygenase and the tetrahydrobiopterin dependent hydroxylases. The name NIH shift arises from the U.S. National Institutes of Health from where studies first reported observing this transformation.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131927515
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Größe H220mm x B4mm x T150mm
- EAN 9786131927515
- Titel NIH Shift
- Gewicht 108g
- Herausgeber Betascript Publishing
- Anzahl Seiten 60
- Genre Biologie
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