ClpP Modulator

Anti-MRSA agent 39 is an orally active ClpX modulator that binds Staphylococcus aureus caseinolytic protease X (SaClpX) with high affinity (K_d = 3.6 μM). Anti-MRSA agent 39 exerts antibacterial effects through temperature-dependent inhibition of cell division. Anti-MRSA agent 39 elicits profound metabolic dysregulation in methicillin-resistant Staphylococcus aureus (MRSA), manifesting as significantly reduced ATP levels, elevated reactive oxygen species (ROS), and decreased NAD+/NADH ratio, and accelerates bacterial lysis rates in MRSA ATCC 33591. Anti-MRSA agent 39 significantly increases the proportion of MRSA cells in the mitotic phase, and the cells exhibit obvious morphological abnormalities. Anti-MRSA agent 39 can be used for the study of invasive MRSA infections.

ClpP modulator-1 (Compound BC8a), a peptidomimetic, is an allosteric ClpP modulator. ClpP modulator-1 is a ClpP activator at low concentration with EC₅₀s of 0.35 and 0.58  μM for for Neisseria meningitides ClpP (NmClpP) and Escherichia coli ClpP (EcClpP), resepectively. ClpP modulator-1 also inhibits peptidase activity at high concentration by competitively inhibiting substrate protein (LY-AMC) binding to ClpP C sites. ClpP modulator-1 has antibacterial activity. ClpP modulator-1 can be used for bacterial infections research.