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Case Reports
. 1977 Sep 29;35(3):187-93.
doi: 10.1007/BF00999459.

Glucosephosphate isomerase deficiency type Liège: a new variant with congenital nonspherocytic hemolytic anemia

Case Reports

Glucosephosphate isomerase deficiency type Liège: a new variant with congenital nonspherocytic hemolytic anemia

H Arnold et al. Blut. .

Abstract

GPI deficiency was detected in a three year old girl of Morrocan origin suffering, since birth, from hemolytic anemia. The defective GPI is very thermolabile and migrates on starch gel electrophoresis as a single band with a mobility of 96% of the normal main band. The purification of the patient's GPI resulted in a 16000-fold enriched preparation, free of any other enzyme activity. The yield was 35%. The purified enzyme was very unstable even at low temperature. The kinetic constants of the forward and backward reaction as well as the inhibitory constants of 2,3-DPG and 6-PG do not significantly differ from normal values. The biochemical properties of the patient's GPI indicate a new variant designated type Liége.

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References

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