Links
| Name | Description |
| G-quadruplex | Wikipedia entry for the G-quadruplex |
| G4-NET | European Network on G-Quartets and Quadruplex Nucleic Acids |
| G-quadruplex world | G-quadruplex Blog |
| GRSDB | G-Rich Sequences DataBase for eukaryotic Quadruplex forming G-Rich Sequences (QGRS) in mRNA/pre-mRNA |
| GRS UTRdb | G-Rich Sequences DataBase for eukaryotic QGRS in in the untranslated regions |
| QuadBase (IGIB) | Database of eukaryotic promoter Putative Quadruplex Sequences (PQS) and prokaryotic whole-genome PQS |
| Greglist | Database of genes with promoter PQS |
| QGRS mapper | Search tool for QGRS |
| Quadfinder | Search tool for PQS and i-motifs |
| G4P calculator | G4P window calculator download |
Website provided as a service to the quadruplex community by Han-Min Wong, Simon Rodgers and Julian Huppert, University of Cambridge.
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