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Results for “GLUCOSEPHOSPHATE DEHYDROGENASE”

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At least 811 records · Page 45Linked to original sources
PubMed1979

Severe malaria and glucose-6-phosphate-dehydrogenase deficiency: a reappraisal of the malaria/G-6-P.D. hypothesis.

Nigerian children with convulsions and Plasmodium falciparium parasitaemia above 100,000/microliter did not show a decreased frequency of glucose-6-phosphate-dehydrogenase (G.-6-P.D.) deficiency. A re-evaluation of earlier studies has led to the conclusion that clinical evidence of protection against falciparum malaria in G.-6-P.D.-deficient individuals is lacking. Evidence for the possible role of malaria in selecting for G.-6-P.D.-deficient genes consists solely of the geographical association of high frequencies of G.-6-P.D. deficiency with endemic malaria.

Child↗
PubMed1992

Duplication of the structural gene for glucosephosphate isomerase and phosphogluconate dehydrogenase in Scabiosa columbaria and their phylogenetic implications in the dipsacaceae.

Zymograms of glucosephosphate isomerase (GPI) and phosphogluconate dehydrogenase (PGD) revealed three isozymes for each enzyme in the plant species Scabiosa columbaria. Intergenic heterodimers are formed between the polypeptides coded by Gpi-1 and Gpi-2 and between those coded by Pgd-1 and Pgd-2, indicating that a GPI and a PGD locus have been duplicated in the past. The ancestral genes assort independently with their duplicated gene, suggesting that the duplications have originated from a process of translocation. Linkage was found only between Gpi-1 and Pgd-2 and between Gpi-2 and Pgd-1, suggesting that the duplicated loci were located on the same translocated chromosomal segment. Both duplications are present in all other examined species of Scabiosa and in Cephalaria and Knautia, two other genera of the Dipsacaceae. The genera Succisa and Dipsacus, also belonging to the Dipsacaceae, do not show Gpi-1 activity, making Gpi-2 and Pgd-1 the most likely ancestral genes. In Succisa, the isozymes of Gpi-1 and Gpi-2 either overlap or Gpi-1 has been silenced. The combined results suggest that a chromosomal segment containing Gpi-2 and Pgd-1 has been translocated before the divergence of Scabiosa, Cephalaria, Knautia, and Succisa.

Genes, Plant↗
PubMed1977

[Glucose-6-phosphate dehydrogenase deficiency of erythrocytes in the GDR].

34 persons with G-6-PD deficiency were diagnosed, and the pathological enzyme-variants of red blood cells were characterized according to the recommendations of WHO. We conclude from the differing residual G-6-PD-activities in red blood cells of the propositi and the differing reactivity of the enzyme in kinetic and physicochemical characterizations that a multiple variety of rare pathological G-6-PD variants exists in the GDR. Using the estimated enzymeparameters it was not possible in all cases to compare directly the newly demonstrated G-6-PD variants with cases already described in the literature. In addition, the differing combinations of parameters render a classification more difficult.

Electrophoresis↗