Aptagen, LLC* The secondary structure may not be accurate because of MFOLD limitations on chemistries other than RNA/DNA.Peptide Gastrin-Releasing Peptide Receptor (GRPR) aka BB2 Receptor) Protein N/A nM (reported value) Peptide binding assays: Phosphate-buffered saline (PBS) with 1% fetal calf serum (FCS). NA If the oligo is a known aptamer sequence: For binding studies, perform a refolding program to ensure proper function (i.e. binding to antigen or target). Refer to the aptamer reference source for the appropriate refolding parameters and binding conditions. Note: it is unknown whether aptamer functions properly without refolding. Aptamer was conjugated to survivin siRNA through the terminal cysteine residue, which was successfully delivered to MDA-MB 231 cells.