Figure 4

Ca2+ release from mitochondria in the presence of xanthurenic acid (1) control mitochondria, (2, 3) in the presence of xanthurenic acid, and 1 mg of mitochondrial proteins: (2) 15 μM xanthurenic acid, (3) in the presence of 66 μM xanthurenic acid (4) after addition of CCCP to (3).