(E) A functional CDGSH iron‐binding domain is necessary, but not sufficient for the interaction between the cytosolic domains of NAF‐1 and BCL‐2. HA‐BCL‐2 ΔTM was in vitro translated in rabbit reticulocyte lysate and equivalent aliquots were added to each GST pull‐down reaction. GST‐fusion proteins used were GST alone, GST‐NAF1‐C, GST‐NAF1‐C‐mut (C99S C101S C110S H114Q), and GST‐MitoNEET‐C. The proteins were detected using anti‐HA and anti‐GST 