TFAM and Infertility: Isoform specific changes were also observed for the mitochondrial transcription factor A (TFAM, isoform 1, 7-fold lower in infertile men group, p = 1.3 e−5), mitochondrial ATP synthase subunit alpha (ATPA, isoform 1, 25-fold lower in infertile group, p = 4.5 e−11) and mitochondrial dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex (ODO2, 6-fold lower in infertile men, p = 3.3 e−7, Figure 2).