Elongin A siRNA (m): sc-sc-35293. Western blot analysis of Elongin A expression in non-transfected control (A) and Elongin A siRNA transfected (B) NIH/3T3 cells. Blot probed with Elongin A (R-19): sc-1557. Actin (I-19): sc-1616 used as specificity and loading control.