Fig. 4.
HIF-1α protein expression in B2ρ0 cybrid cell line.
Immunoblot of HIF-1α protein levels in normoxic A549, B2ρ0, and B2ρ0 cybrid cell lines. Cybrid cell line harbors mitochondria with 100% wild-type mtDNA and is restored to respiratory competence. Four independent sets of whole cell extracts 1 to 4 were assayed.