| Literature DB >> 241517 |
J P Van Biervliet, L Van Milligen-Boersma, G E Staal.
Abstract
A new case of glucosephosphate isomerase deficiency is described in a Dutch family. The activity of the enzyme was decreased to 20-25% of the normal value. Characterization of the defect enzyme showed a pronounced thermolability. Heating of the enzyme at 45 degrees C showed a loss of activity of 90% after one hour. The pH-optimum and the electrophoretic migration were normal. The Km-value for F-6-P, the Ki for the competitive inhibitors 2,3-DPG and 6-PG were in the normal range. The variant described here differs from all known variants. Therefore we propose to give to this new variant the name of GPI-Utrecht.Entities:
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Year: 1975 PMID: 241517 DOI: 10.1016/0009-8981(75)90103-5
Source DB: PubMed Journal: Clin Chim Acta ISSN: 0009-8981 Impact factor: 3.786