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Reduction of 4-nitroquinoline 1-oxide to 4-hydroxyaminoquinoline 1-oxide in lysates of cytomegalovirus-infected cells. 1983

D J Speelman, and H Lund, and A Culling, and J S Kittredge, and B J Williams, and T Albrecht

The rates of virus inactivation by 4-nitroquinoline 1-oxide (NQO) and 4-hydroxyaminoquinoline 1-oxide (HAQO) were compared and samples of cytomegalovirus (CMV)-infected cell lysates to which NQO had been added were examined for the presence of HAQO. These experiments demonstrated that (i) CMV inactivation by HAQO was more rapid than with NQO, (ii) virus inactivation by either NQO or HAQO failed to demonstrate a photodynamic component, and (iii) NQO-treated stocks contained HAQO, indicating reduction of NQO to HAQO. The results support the concept that metabolism of NQO to HAQO enhances the genotoxic effect of NQO.

UI MeSH Term Description Entries
D009153 Mutagens Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes. Clastogen,Clastogens,Genotoxin,Genotoxins,Mutagen
D009247 NADH, NADPH Oxidoreductases A group of oxidoreductases that act on NADH or NADPH. In general, enzymes using NADH or NADPH to reduce a substrate are classified according to the reverse reaction, in which NAD+ or NADP+ is formally regarded as an acceptor. This subclass includes only those enzymes in which some other redox carrier is the acceptor. (Enzyme Nomenclature, 1992, p100) EC 1.6. Oxidoreductases, NADH, NADPH,NADPH Oxidoreductases NADH,Oxidoreductases NADH, NADPH
D009600 Nitroquinolines Quinolines substituted in any position by one or more nitro groups.
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
D002474 Cell-Free System A fractionated cell extract that maintains a biological function. A subcellular fraction isolated by ultracentrifugation or other separation techniques must first be isolated so that a process can be studied free from all of the complex side reactions that occur in a cell. The cell-free system is therefore widely used in cell biology. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p166) Cellfree System,Cell Free System,Cell-Free Systems,Cellfree Systems,System, Cell-Free,System, Cellfree,Systems, Cell-Free,Systems, Cellfree
D003586 Cytomegalovirus Infections Infection with CYTOMEGALOVIRUS, characterized by enlarged cells bearing intranuclear inclusions. Infection may be in almost any organ, but the salivary glands are the most common site in children, as are the lungs in adults. CMV Inclusion,CMV Inclusions,Congenital CMV Infection,Congenital Cytomegalovirus Infection,Cytomegalic Inclusion Disease,Cytomegalovirus Colitis,Cytomegalovirus Inclusion,Cytomegalovirus Inclusion Disease,Cytomegalovirus Inclusions,Inclusion Disease,Perinatal CMV Infection,Perinatal Cytomegalovirus Infection,Renal Tubular Cytomegalovirus Inclusion,Renal Tubular Cytomegalovirus Inclusions,Salivary Gland Virus Disease,Severe Cytomegalovirus Infection,Severe Cytomegalovirus Infections,Infections, Cytomegalovirus,CMV Infection, Congenital,CMV Infection, Perinatal,Colitis, Cytomegalovirus,Congenital CMV Infections,Congenital Cytomegalovirus Infections,Cytomegalic Inclusion Diseases,Cytomegalovirus Colitides,Cytomegalovirus Inclusion Diseases,Cytomegalovirus Infection,Cytomegalovirus Infection, Congenital,Cytomegalovirus Infection, Perinatal,Cytomegalovirus Infection, Severe,Cytomegalovirus Infections, Severe,Disease, Cytomegalic Inclusion,Disease, Cytomegalovirus Inclusion,Diseases, Cytomegalovirus Inclusion,Inclusion Disease, Cytomegalic,Inclusion Disease, Cytomegalovirus,Inclusion Diseases,Inclusion Diseases, Cytomegalovirus,Inclusion, CMV,Inclusion, Cytomegalovirus,Infection, Congenital CMV,Infection, Congenital Cytomegalovirus,Infection, Cytomegalovirus,Infection, Perinatal CMV,Infection, Perinatal Cytomegalovirus,Infection, Severe Cytomegalovirus,Perinatal CMV Infections,Perinatal Cytomegalovirus Infections
D000634 Aminoquinolines Quinolines substituted in any position by one or more amino groups.
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications
D015108 4-Hydroxyaminoquinoline-1-oxide A potent mutagen and carcinogen. It is a reduction product of 4-NITROQUINOLINE-1-OXIDE. It binds with nucleic acids and inactivates both bacteria and bacteriophage. 4-Hydroxyaminoquinoline-N-oxide,4 Hydroxyaminoquinoline 1 oxide,4 Hydroxyaminoquinoline N oxide
D015112 4-Nitroquinoline-1-oxide A potent mutagen and carcinogen. This compound and its metabolite 4-HYDROXYAMINOQUINOLINE-1-OXIDE bind to nucleic acids. It inactivates bacteria but not bacteriophage. 4-Nitroquinoline-N-oxide,4 Nitroquinoline 1 oxide,4 Nitroquinoline N oxide

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