Mechanism of enzymic isomerization and epimerization of d-erythrose 4-phosphate

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Mechanism of enzymic isomerization and epimerization of D-erythrose 4-phosphate.

The mechanism of the enzymic isomerization and epimerization of D-erythrose 4-phosphate (Ery4P) by an enzyme preparation from bovine liver was investigated with the use of 2H2O. The incorporation of 2H was quantitatively determined by a procedure using gas chromatography-mass spectrometry. About one atom of 2H was incorporated per molecule of the enzymic epimerization reaction product of Ery4P ...

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Regulation of aspartate aminotransferase isozymes by D-erythrose 4-phosphate and glycolaldehyde phosphate, the naturally occurring homologues of D-glyceraldehyde 3-phosphate.

As part of a study of the regulation of aspartate aminotransferase isozymes (EC 2.6.1. l), we have investigated the characteristics of inhibition of the anionic and cationic isozymes by u-erythrose 4-phosphate and glycolaldehyde phosphate, the naturally occurring homologues of D-glyceraldehyde 3-phosphate. Erythrose-4-P has been found to be a time-dependent inhibitor of both the cationic and an...

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Erythritol feeds the pentose phosphate pathway via three new isomerases leading to D-erythrose-4-phosphate in Brucella.

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ژورنال

عنوان ژورنال: Biochemical Journal

سال: 1986

ISSN: 0264-6021,1470-8728

DOI: 10.1042/bj2390739