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The copper complex of the antituberculous drug, insonicotinic acid hydrazide (INH), inhibits the RNA-dependent DNA polymerase of Rous sarcoma virus and inactivates its ability to malignantly transform chick embryo cells. The INH-copper complex binds to the 70S genome RNA of Rous sarcoma virus (RSV),
We have shown that three types of copper-binding ligands, thiosemicarbazones, 8-hydroxyquinolines, and isonicotinic acid hydrazide and their copper complexes, inactivate the transforming ability of RSV and inhibit its RNA-dependent DNA polymerases. Three other compounds, 2-pyridine
Intermediate metabolites of tryptophan, 3-hydroxy-L-kynurenine (3-OHKY), 3-hydroxyanthranilic acid (3-OHAA) and anthranilic acid (AA), and an enzyme inhibitor from 3-OHKY to 3-OHAA, isonicotinic acid hydrazide (INH) with or without 3-OHKY at the maximum tolerated dose were injected s.c. to infant
Several, structurally different, copper-binding ligands can inhibit the RNA-dependent DNA polymerase of Rous sarcoma virus (RSV) and can inactivate the ability of the virus to malignantly transform chick embryo cells. These ligands include the anti-microbial agents, thiosemicarbazones,