Specificity of UGT2B7 antibody. Immunoblot of UGT2B7 antibody tested against four members of the UGT2B family of isoenzymes, UGT2B4, UGT2B7, UGT2B11, and UGT2B15, expressed in HEK293 cells. Ten and 25 μg of the four expressed proteins, and protein from untransfected HEK293 cells, were electrophoresed using sodium dodecyl sulfate-polyacrylamide gel electrophoresis, as described in Materials and Methods. The antibody can be seen to recognize UGT2B7 protein, but not the other three UGT proteins or protein from untransfected HEK293 cells.