Journal article

Publication year: 2007

Pages: 3560-3566

Journal: Blood

Volume number: 109

Issue number: 8

ISSN: 0006-4971

eISSN: 1528-0020

DOI Link: https://doi.org/10.1182/blood-2006-08-042531

Publisher: American Society of Hematology (ASH Publications)

Abstract: 
Hereditary glutathione reductase (GR) deficiency was found in only 2 cases when testing more than 15 000 blood samples. We have investigated the blood cells of 2 patients (1a and 1b) in a previously described family suffering from favism and cataract and of a novel patient (2) presenting with severe neonatal jaundice. Red blood cells and leukocytes of the patients in family 1 did not contain any GR activity, and the GR protein was undetectable by Western blotting. Owing to a 2246-bp deletion in the patients' DNA, translated GR is expected to lack almost the complete dimerization domain, which results in unstable and inactive enzyme. The red blood cells from patient 2 did not exhibit GR activity either, but the patient's leukocytes contained some residual activity that correlated with a weak protein expression. Patient 2 was found to be a compound heterozygote, with a premature stop codon on one allele and a substitution of glycine 330, a highly conserved residue in the superfamily of NAD(P)H-dependent disulfide reductases, into alanine on the other allele. Studies on recombinant GR G330A revealed a drastically impaired thermostability of the protein. This is the first identification of mutations in the GR gene causing clinical GR deficiency.

Harvard Citation style: Kamerbeek, N., van Zwieten, R., de Boer, M., Morren, G., Vuil, H., Bannink, N., et al. (2007) Molecular basis of glutathione reductase deficiency in human blood cells, Blood, 109(8), pp. 3560-3566. https://doi.org/10.1182/blood-2006-08-042531

APA Citation style: Kamerbeek, N., van Zwieten, R., de Boer, M., Morren, G., Vuil, H., Bannink, N., Lincke, C., Dolman, K., Becker, K., Schirmer, R., Gromer, S., & Roos, D. (2007). Molecular basis of glutathione reductase deficiency in human blood cells. Blood. 109(8), 3560-3566. https://doi.org/10.1182/blood-2006-08-042531