Description
MK-2048 is a second generation inhibitor of HIV-1 integrase with IC50 values of 0.075 μM and 0.08 μM for subtype B and subtype C integrase, respectively.
Product Overview
MK-2048 is a second generation inhibitor of HIV-1 integrase with IC50 values of 0.075 μM and 0.08 μM for subtype B and subtype C integrase, respectively. Integration of viral cDNA into the host genome is one of the definitive features of retrovirus replication. Integrase inhibitors are active against both B and non-B subtypes in therapy. Subtype C variants are responsible for approximately 50% of infections worldwide, mostly in Sub-Saharan Africa and India. After viral entry and reverse transcription, reverse-transcribed double-stranded blunt-ended DNA is incorporated into the host cell genome through two catalytic activities mediated by integrase. MK-2048 could inhibit the strand transfer process catalyzed by integrase. The inhibition activity of MK-2048 against integrase was evaluated by means of purified recombinant subtype B and C integrase enzymes, which were obtained and amplified from viruses in long-term infected patients. Purified recombinant subtype B and C integrase enzymes were incubated with increasing concentrations of MK-2048 and corresponding templates. MK-2048 possesses inhibition activities for strand transfer against subtype B and C enzymes, whose IC50 values were 0.075 μM and 0.08 μM, respectively. Disintegration was inhibited by high concentrations of MK-2048 to a comparable extent with both subtype B and C enzymes. Inhibition of replication by MK-2048 was also evaluated in cell culture based assays using cord blood mononuclear cells. EC50 for subtype B viruses varies from 0.0003 μM to 0.0148 μM and 0.0007 μM to 0.0033 μM for subtype C viruses.
Targets
subtype B integrase; subtype C integrase
Molecular Formula
C21H21ClFN5O4
Chemical Name
(6S)-2-[(3-chloro-4-fluorophenyl)methyl]-8-ethyl-10-hydroxy-N,6-dimethyl-1,9-dioxo-6,7-dihydropyrazino[5,6]pyrrolo[1,3-b]pyridazine-4-carboxamide
Solubility
Soluble in DMSO > 10 mM
Shipping Conditions
Evaluation sample solution: ship with blue ice. All other available size: ship with RT, or blue ice upon request