(B) GST‐Zwint‐1 or GST‐beads were used to pull down recombinant purified His6‐Beclin‐1. (Left) Coomassie‐blue‐stained gel of the purified recombinant proteins (1 μg). (Right) A western blot of GST proteins and His6‐Beclin‐1 in the input and bound fractions. His6‐Beclin‐1 in the input represents 4% of the amount used for the pull‐down. 