MCU-i4
MCU i4 is a negative modulator of mitochondrial calcium (Ca2+) uniporter (MCU) complex, which binds to MICU1, a regulatory protein within MCU complex. MCU i4 reduces mitochondrial Ca2+ uptake in multiple cell lines including MEFs, MDA-MB,231 and HEK293T cells, and demonstrates a negative effect on mitochondrial membrane potential.