Data on G-quadruplex topology, and binding ability of G-quadruplex forming sequences found in the promoter region of biomarker proteins and those relations to the presence of nuclear localization signal in the proteins

Abstract

Aptamer is a nucleic acid ligand which specifically binds to its target molecule. Previously, we have designed an identification method of aptamer called “G-quadruplex (G4) promoter-derived aptamer selection (G4PAS)” [1]. In G4PAS procedure, putative G4 forming sequences (PQS) were explored in a promoter region of a target protein in human gene through computational analysis, and evaluated binding ability towards the gene product encoded in the downstream of the promoter. We investigated the topology of the obtained PQSs by circular dichroism measurement, as well as their binding ability against its target protein by surface plasmon resonance measurement and gel-shift assay. Additionally, the presence of nuclear localization signal in the target protein was predicted in silico. This data set summarized all the PQS sequences, their biochemical characteristics, and the presence of nuclear localization signal to address the possibility of binding of these PQS region to the target proteins in vivo. Those data should contribute to increase the success rate of G4PAS. Moreover, considering the G4 motifs in genomic DNA are suggested to be involved in vivo gene regulation [2,3], this data set is also potentially beneficial for the cell biology field.

Keywords

• G-quadruplex
• Aptamer
• Nuclear localization signal
• Promoter region
• Biomarker protein