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D-glycerate kinase deficiency as a cause of D-glyceric aciduria.


PMID 2537226

Abstract

D-Glycerate kinase was measured in human livers thanks to a new, sensitive radiochemical assay. The enzyme was extremely unstable in extracts prepared in water, but was partly stabilized in a homogenization mixture containing inorganic phosphate, D-glycerate and EGTA. When extracted in such a stabilizing mixture, glycerate kinase activity amounted to 0.86 +/- 0.21 U/g in control livers and to 0.03 U/g in the liver of a patient with D-glyceric aciduria. In contrast, D-glycerate dehydrogenase (glyoxylate reductase) and triokinase activities were not deficient in the liver of the same patient. It is concluded that D-glycerate kinase deficiency is a cause of D-glyceric aciduria.

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61786
D-Glyceric acid sodium salt, ≥95.0% (TLC)
C3H6O4 · xNa+