[Kinetic analysis of interaction of human immunodeficiency virus reverse transcriptase with alkaloids]. 1994

S O Gudima, and L V Memelova, and V B Borodulin, and D K Pokholok, and B M Mednikov, and O N Tolkachev, and S N Kochetkov

The interactions of HIV-I reverse transcriptase with some alkaloids were studied. Among nine compounds tested three--berberine, palmatine and sanguiritrine--inhibited RT. The dependence of the inhibition on the type of template-primer was also demonstrated. The kinetic analysis as well as circular dichroism experiments suggest the complex mechanism of RT inhibition by alkaloids. This mechanism includes both enzyme-alkaloid and alkaloid-template interactions; the latter effect also results in RT inhibition.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D002942 Circular Dichroism A change from planar to elliptic polarization when an initially plane-polarized light wave traverses an optically active medium. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Circular Dichroism, Vibrational,Dichroism, Circular,Vibrational Circular Dichroism
D000470 Alkaloids Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesized. (Grant & Hackh's Chemical Dictionary, 5th ed) Alkaloid,Plant Alkaloid,Plant Alkaloids,Alkaloid, Plant,Alkaloids, Plant
D001599 Berberine An alkaloid from Hydrastis canadensis L., Berberidaceae. It is also found in many other plants. It is relatively toxic parenterally, but has been used orally for various parasitic and fungal infections and as antidiarrheal. Umbellatine
D001600 Berberine Alkaloids A group of related plant alkaloids that contain the BERBERINE heterocyclic ring structure. Berbines,Alkaloids, Berberine
D015497 HIV-1 The type species of LENTIVIRUS and the etiologic agent of AIDS. It is characterized by its cytopathic effect and affinity for the T4-lymphocyte. Human immunodeficiency virus 1,HIV-I,Human Immunodeficiency Virus Type 1,Immunodeficiency Virus Type 1, Human
D054303 HIV Reverse Transcriptase A reverse transcriptase encoded by the POL GENE of HIV. It is a heterodimer of 66 kDa and 51 kDa subunits that are derived from a common precursor protein. The heterodimer also includes an RNAse H activity (RIBONUCLEASE H, HUMAN IMMUNODEFICIENCY VIRUS) that plays an essential role the viral replication process. Reverse Transcriptase, HIV,Reverse Transcriptase, Human Immunodeficiency Virus,Transcriptase, HIV Reverse
D018894 Reverse Transcriptase Inhibitors Inhibitors of reverse transcriptase (RNA-DIRECTED DNA POLYMERASE), an enzyme that synthesizes DNA on an RNA template. Reverse Transcriptase Inhibitor,Inhibitors, Reverse Transcriptase,Inhibitor, Reverse Transcriptase,Transcriptase Inhibitor, Reverse

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