| Literature DB >> 4365376 |
H Frischer, R Nelson, C Noyes, P E Carson, J E Bowman, K H Rieckmann, F Ajmar.
Abstract
Erythrocytic NADH methemoglobin diaphorase acquires NADH-dichlorophenolindophenol diaphorase activity when enzyme-associated NAD is removed. This transformation is reversible and can be mediated by membrane NAD glycohydrolase (EC 3.2.2.5) in hemolysates as well as in intact cells exposed to hydrogen peroxide. It is abolished either in NADH methemoglobin diaphorase deficiency or in NAD(P) glycohydrolase (EC 3.2.2.6) deficiency which is common in Afro-American but not in European-American adults. Activities of erythrocytic NADP glycohydrolase and NAD glycohydrolase appear to depend on a single membrane enzyme.Entities:
Mesh:
Substances:
Year: 1973 PMID: 4365376 PMCID: PMC433745 DOI: 10.1073/pnas.70.8.2406
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205