VDAC1 and Sepsis: Using an antibody cocktail against marker proteins of mitochondrial membrane (Fig. 2C), we detected a similar degree of reduction in tyrosine phosphorylation of porin, cyclophilin D and cytochrome C. On the contrary, tyrosine phosphorylation of complex V (C-V) alpha subunit and complex III (C-III) core 1 did not respond to sepsis.