Glutathione reductase activity in blood cells of some members of family 1 and family 2
. | GR activity in RBCs, IU/g hemoglobin . | GR activity in leukocytes, IU/1011 cells . | Protein(s) encoded in the 2 GSR alleles . |
---|---|---|---|
Patient 1a | < 0.4 | < 5 | Truncated and unfolded polypeptide with 405 amino acids |
Patient 1b | < 0.4 | < 5 | Truncated and unfolded polypeptide with 405 amino acids |
Father 2 | 1.1 | 140 | Wild-type GR and the labile GR Gly330Ala mutant |
Mother 2 | 1.6 | 116 | Wild-type GR and the nonsense mutant ending at Leu286 |
Patient 2 | < 0.4 (1.0)* | 20 | Labile GR Gly330Ala and the mutant ending at Leu286 |
100 healthy adults, range | 2.7-5.8 | 118-164 | Wild-type GR |
100 healthy children younger than 3 mo, range | 3.1-6.6 | Not determined | Wild-type GR |
. | GR activity in RBCs, IU/g hemoglobin . | GR activity in leukocytes, IU/1011 cells . | Protein(s) encoded in the 2 GSR alleles . |
---|---|---|---|
Patient 1a | < 0.4 | < 5 | Truncated and unfolded polypeptide with 405 amino acids |
Patient 1b | < 0.4 | < 5 | Truncated and unfolded polypeptide with 405 amino acids |
Father 2 | 1.1 | 140 | Wild-type GR and the labile GR Gly330Ala mutant |
Mother 2 | 1.6 | 116 | Wild-type GR and the nonsense mutant ending at Leu286 |
Patient 2 | < 0.4 (1.0)* | 20 | Labile GR Gly330Ala and the mutant ending at Leu286 |
100 healthy adults, range | 2.7-5.8 | 118-164 | Wild-type GR |
100 healthy children younger than 3 mo, range | 3.1-6.6 | Not determined | Wild-type GR |
After riboflavin administration, the GR activity rose to 1.0 IU/g hemoglobin.