WB using anti-TMBIM1 antibody shows detection of exogenous TMBIM1 in lysates from HeLa cells transfected with pcDNA3-hTMBIM1 (lane 1). No staining is observed in lysates from mock transformed HeLa cells (lane 2). To date this antibody has shown the ability to recognize overexpressed TMBIM1 but not endogenous protein. The membrane was probed with the primary antibody at a 1:1,000 dilution at 4°C, overnight. Personal Communication from Srinivasa Srinivasula, CCR-NCI, Bethesda, MD.