Figure 2.

Expression profile of SIRT3 on a panel of multiple human tissue Northern blot. (A) A 2.1-kb SIRT3 transcript detectable in the heart, skeletal muscle, kidney, and liver. β-actin probe is included as a loading control. (B) Expression of SIRT3 is detectable in all the tissues tested, although only a low level of expression can be seen is the placenta and lung. (Lower) β-actin was used again as a loading control. (C) Expression analysis of SIRT3 in fetal tissues. From loading controls not included, we deduced that the expression level in fetal tissues was equal in all the tested tissues.