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Stereospecificity of phenylpyruvate tautomerase. A convenient method for the preparation of chirally labelled phenylpyruvates.
- Source :
-
European journal of biochemistry [Eur J Biochem] 1977 Jan; Vol. 72 (2), pp. 251-7. - Publication Year :
- 1977
-
Abstract
- 1. By 1H nuclear magnetic resonance spectroscopy it has been shown that phenylpyruvate tautomerase from beef kidney catalyses the stereospecific exchange of one of the enantiotopic 3H-atoms in the side-chain of the substrate with solvent protons, the rate of spontaneous exchange being slow under physiological conditions. 2. Using monodeuterated phenylpyruvate of known absolute configuration it has been shown that the tautomerase removes specifically the 3-pro-R hydrogen atom of the substrate. 3. The circular dichroism spectra of the two enantiomeric 3-phenyl-[3-2H]pyruvates have been determined. 4. Some implications of these findings for the investigation of the metabolism of aromatic amino acids are discussed.
Details
- Language :
- English
- ISSN :
- 0014-2956
- Volume :
- 72
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- European journal of biochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 13997
- Full Text :
- https://doi.org/10.1111/j.1432-1033.1977.tb11247.x