Simultaneous knockdown of multiple genes in primary human islets following electroporation. (A) Graph shows RT-qPCR results of islets electroporated with non-targeting control siRNA or siRNA targeting RB and p130 (L-003299). (B) Graph shows RT-qPCR results of islets electroporated with non-targeted control siRNA or siRNAs targeting the indicated gene products. The housekeeping gene GAPDH was used as the control. Representative experiment shown from 3 separate experiments. Error bars indicate standard deviation. (C) Western blot for RB protein in human islet lysates after electroporation of control or targeting siRNA. GAPDH was used as a loading control. RB appears as a characteristic doublet representing the hypo and hyperphosphorylated protein. Representative experiment shown from 3 different experiments.