SDHAF2 and neuroblastoma: Moreover, the accumulation of SDHAF2 following OXPHOS insult is notably absent in some cell lines (HeLa, eHAP, 143B, MCF7, undifferentiated H9 hESCs) but not others (HEK293T, SK-N-SH, SH-SY5Y neuroblastoma cell lines, and hESC-differentiated cardiomyocytes) (Figs. 5F and 7I).