(F) Total yeast cell lysate, post mitochondrial supernatant, and HistodenzTM-purified mitochondria from the indicated strain (wild type, msp1Δ, pex19Δ, pex19Δmsp1Δ, pex3Δ, and pex3Δmsp1Δ) expressing Pex13-V5 (under its endogenous promotor) were separated by SDS-PAGE and immunoblotted for Pex13 (α-V5), cytochrome c (α-cyt c), and HSP70 (α-hsp70). (G) Total yeast cell lysate, post mitochondrial supernatant, and HistodenzTM-purified mitochondria from the indicated strain (wild type, msp1Δ, pex19Δ, pex19Δmsp1Δ, pex3Δ, and pex3Δmsp1Δ) expressing Pex11-V5 (under its endogenous promotor) were separated by SDS-PAGE and immunoblotted for Pex11 (α-V5) and porin (α-porin), cytochrome c (α-cyt c), and HSP70 (α-hsp70). 