With the biotin tagged peptide, immunoprecipitation (IP) assay was performed which indicated specific binding of the peptide and SSTR2 proteins (Figure 2A, lane 3), whereas no bands were visible in case of whole cell lysates prepared from C6 (rat glioma) cells when incubated with scrambled non-specific peptide and only bead. Here, SSTR2 is linked to glioma.