HEK293T cells were transfected with the pCMV6-ENTRY control (Left lane) or pCMV6-ENTRY OTUB1 (RC210648, Right lane) cDNA for 48 hrs and lysed. Equivalent amounts of cell lysates (5 ug per lane) were separated by SDS-PAGE and immunoblotted with anti-OTUB1. Positive lysates LY402607 (100 ug) and LC402607 (20 ug) can be purchased separately from OriGene.