What does raltegravir inhibit?

Raltegravir is a potent inhibitor of the replication of HIV-1 and HIV-2 in vitro [70,79]. It is more than 1000 times more selective for integrase than for other phosphatidyl transferases, such as HIV-1 RNAseH and human polymerases.

What is the action of integrase?

Specifically, integrase binds to viral DNA and joins it with host DNA. The divalent cations in the catalytic core of integrase enable it to form covalent bonds with DNA. This is followed by cellular repair activities that seal the viral DNA into the chromosome.

What are integrase enzymes?

Integrase (IN) is a retroviral enzyme that catalyzes the insertion of viral DNA (vDNA) into host chromosomal DNA, which is necessary for efficient viral replication.

What is the mechanism of action of raltegravir?

MECHANISM OF ACTION Raltegravir is an antiretroviral drug used in the treatment of HIV-1 infection. The drug inhibits the activity of HIV-1 integrase, which impedes the insertion of HIV-1 DNA into the host cell genome.

How integrase strand transfer inhibitors work?

Integrase (IN) strand transfer inhibitors (INSTIs) are recent compounds in the antiretroviral arsenal used against HIV. INSTIs work by blocking retroviral integration; an essential step in the viral lifecycle that is catalyzed by the virally encoded IN protein within a nucleoprotein assembly called an intasome.

Is raltegravir an integrase inhibitor?

Raltegravir is first in a novel class of antiretroviral drugs known as integrase inhibitors. It has demonstrated potent anti HIV activity in both antiretroviral treatment-naïve and experienced patients.

What can you not take with Truvada?

Some products that may interact with this drug include: adefovir, orlistat, other drugs that may harm the kidneys (including aminoglycosides such as amikacin/gentamicin). Tenofovir can decrease the effectiveness of another medication, atazanavir (by decreasing blood levels).

Can you take Truvada and raltegravir at the same time?

Truvada & Raltegravir All three are antiviral drugs which are effective against the HIV virus. Used together, there is evidence that they can reduce the risk of developing HIV infection following exposure to the virus.

What is the function of integrase in retroviruses?

The retroviral integrases are virally encoded, specialized recombinases that catalyze the insertion of viral DNA into the host cell’s DNA, a process that is essential for virus propagation.