S3QEL 2 is a selective inhibitor of superoxide production from the outer Q-binding site of mitochondrial respiratory complex site III (IIIQo) without altering oxidative phosphorylation.
PZ-2891 is an orally bioavailable, brain penetrant pantothenate kinase (PANK) modulator. PZ-2891 act as an orthosteric inhibitor at high concentrations and an allosteric activator at lower sub-saturating concentrations. PZ-2891 inhibits human pantothenate kinases PANK1β, PANK2, and PANK3 with IC50s of 40.2 nM, 0.7 nM and 1.3 nM, respectively.
