(a) Total cellular lysates from HEK293T cells transfected with myc-VPS39 or VPS41 were incubated with GST-empty vector (EV), RAB2A-S20N (SN), or RAB2A-Q65L (QL) proteins bound to glutathione sepharose beads. Immunoblotting was performed with anti-myc antibody. Input lysates are also shown. GST proteins loaded in gels were stained with CBB. 