Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 2,408

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Quadruplex DNA: sequence, topology and structure

Open access
Burge, Sarah, Parkinson, Gary N., Hazel, Pascale, Todd, Alan K., Neidle, Stephen·2006·Nucleic Acids Research

Abstract

G-quadruplexes are higher-order DNA and RNA structures formed from G-rich sequences that are built around tetrads of hydrogen-bonded guanine bases. Potential quadruplex sequences have been identified in G-rich eukaryotic telomeres, and more recently in non-telomeric genomic DNA, e.g. in nuclease-hypersensitive promoter regions. The natural role and biological validation of these structures is starting to be explored, and there is particular interest in them as targets for therapeutic intervention. This survey focuses on the folding and structural features on quadruplexes formed from telomeric and non-telomeric DNA sequences, and examines fundamental aspects of topology and the emerging relationships with sequence. Emphasis is placed on information from the high-resolution methods of X-ray crystallography and NMR, and their scope and current limitations are discussed. Such information, together with biological insights, will be important for the discovery of drugs targeting quadruplexes from particular genes.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1093/nar/gkl655

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 1 references

Research works printed but not linked: 106

  1. Gellert, 1962, Helix formation by guanylic acid, Proc. Natl Acad. Sci. USA, 48, 2013, 10.1073/pnas.48.12.2013 · DOI · Paper page
  2. Zimmerman, 1975, X-ray fiber diffraction and model-building study of polyguanylic acid and polyinosinic acid, J. Mol. Biol, 92, 181, 10.1016/0022-2836(75)90222-3 · DOI · Paper page
  3. Arnott, 1974, Structures for polyinosinic acid and polyguanylic acid, Biochem. J, 141, 537, 10.1042/bj1410537 · DOI · Paper page
  4. Howard, 1977, Stable and metastable forms of poly(G), Biopolymers, 16, 791, 10.1002/bip.1977.360160407 · DOI
  5. Williamson, 1994, G-tetrad structures in telomeric DNA, Ann. Rev. Biophys. Biomol. Struct, 23, 703, 10.1146/annurev.bb.23.060194.003415 · DOI · Paper page
  6. Davies, 2004, G-tetrads 40 years later: from 5′-GMP to molecular biology and supramolecular chemistry, Angew. Chem. Intl. Edit, 43, 668, 10.1002/anie.200300589 · DOI · Paper page
  7. Sen, 1988, Formation of parallel four-stranded complexes by guanine-rich motifs in DNA and its implications for meiosis, Nature, 334, 364, 10.1038/334364a0 · DOI · Paper page
  8. Sundquist, 1989, Telomeric DNA dimerizes by formation of guanine tetrads between hairpin loops, Nature, 342, 825, 10.1038/342825a0 · DOI · Paper page
  9. Wright, 1997, Normal human chromosomes have long G-rich telomeric overhangs at one end, Genes Dev, 11, 2801, 10.1101/gad.11.21.2801 · DOI · Paper page
  10. Sfeir, 2005, Telomere-end processing the terminal nucleotides of human chromosomes, Mol. Cell, 18, 131, 10.1016/j.molcel.2005.02.035 · DOI · Paper page
  11. Lei, 2004, Structure of human POT1 bound to telomeric single-stranded DNA provides a model for chromosome end-protection, Nature Struct. Mol. Biol, 11, 1223, 10.1038/nsmb867 · DOI · Paper page
  12. Zaug, 2005, Human POT1 disrupts telomeric G-quadruplexes allowing telomerase extension in vitro, Proc. Natl Acad. Sci. USA, 102, 10864, 10.1073/pnas.0504744102 · DOI · Paper page
  13. Cech, 2004, Beginning to understand the end of the chromosome, Cell, 116, 273, 10.1016/S0092-8674(04)00038-8 · DOI · Paper page
  14. Huang, 1998, The telomeres of Streptomyces chromosomes contain conserved palindromic sequences with potential to form complex secondary structures, Mol. Microbiol, 28, 905, 10.1046/j.1365-2958.1998.00856.x · doi:10.1046/j.1365-2958.1998.00856.x
  15. Jing, 2006, Targeting signal transducer and activator of transcription 3 with G-tetrad oligonucleotides: a potential novel therapy for head and neck cancer, Mol. Cancer Ther, 5, 279, 10.1158/1535-7163.MCT-05-0302 · DOI
  16. McMicken, 2003, Antiproliferative activity of G-tetrad-containing oligonucleotides generated by a novel single-stranded DNA expression system, Cancer Gene Ther, 10, 867, 10.1038/sj.cgt.7700652 · DOI
  17. Kelly, 1996, Reconciliation of the X-ray and NMR structures of the thrombin-binding aptamer d(GGTTGGTGTGGTTGG), J. Mol. Biol, 256, 417, 10.1006/jmbi.1996.0097 · DOI
  18. Todd, 2005, Highly prevalent putative quadruplex sequence motifs in human DNA, Nucleic Acids Res, 33, 2901, 10.1093/nar/gki553 · DOI · Paper page
  19. Huppert, 2005, Prevalence of quadruplexes in the human genome, Nucleic Acids Res, 33, 2901, 10.1093/nar/gki609 · DOI · Paper page
  20. Simonsson, 1998, DNA tetraplex formation in the control region of c-myc, Nucleic Acids Res, 26, 1167, 10.1093/nar/26.5.1167 · DOI · Paper page
  21. Rawal, 2006, Genome-wide prediction of G4 DNA as regulatory motifs: role in Escherichia coli global regulation, Genome Res, 16, 644, 10.1101/gr.4508806 · DOI · Paper page
  22. Parkinson, 2002, Crystal structure of parallel quadruplexes from human telomeric DNA, Nature, 417, 876, 10.1038/nature755 · DOI · Paper page
  23. Phan, 2003, Two-repeat human telomeric d(TAGGGTTAGGGT) sequence forms interconverting parallel and antiparallel G-quadruplexes in solution: distinct topologies, thermodynamic properties and folding/unfolding kinetics, J. Am. Chem. Soc, 125, 15021, 10.1021/ja037616j · doi:10.1021/ja037616j
  24. Phan, 2004, Two-repeat Tetrahymena telomeric d(TGGGGTTGGGGT) sequence interconverts between asymmetric dimeric G-quadruplexes in solution, J. Mol. Biol, 338, 93, 10.1016/j.jmb.2004.02.042 · DOI
  25. Kettani, 1998, Solution structure of a Na cation stabilized DNA quadruplex containing G.G.G.G and G.C.G.C tetrads formed by G-G-G-C repeats observed in adeno-associated viral DNA, J. Mol. Biol, 282, 619, 10.1006/jmbi.1998.2030 · doi:10.1006/jmbi.1998.2030
  26. Hazel, 2006, Topology variation and loop structural homology in crystal and simulated structures of a bimolecular DNA quadruplex, J. Amer. Chem. Soc, 128, 5480, 10.1021/ja058577+ · doi:10.1021/ja058577+
  27. Gill, 2005, 205Tl MNR methods for the characterisation of monovalent cation binding to nucleic acids, J. Amer. Chem. Soc, 127, 16723, 10.1021/ja055358f · doi:10.1021/ja055358f
  28. Haider, 2002, Crystal structure of the potassium form of an Oxytricha nova G-quadruplex, J. Mol. Biol, 320, 189, 10.1016/S0022-2836(02)00428-X · DOI · Paper page
  29. Smith, 1992, Quadruplex structure of Oxytricha telomeric DNA oligonucleotides, Nature, 356, 164, 10.1038/356164a0 · DOI · Paper page
  30. Schultze, 1999, The effect of sodium, potassium and ammonium ions on the conformation of the dimeric quadruplex formed by the Oxytricha nova telomere repeat oligonucleotide d(G4T4G4), Nucleic Acids Res, 27, 3018, 10.1093/nar/27.15.3018 · DOI · Paper page
  31. Schultze, 1994, Refined solution structure of the dimeric quadruplex formed from the Oxytricha telomeric oligonucleotide d(GGGGTTTTGGGG), Structure, 2, 221, 10.1016/S0969-2126(00)00023-X · DOI · Paper page
  32. Clay, 2005, A combined QM and MM investigation into guanine quadruplexes, J. Mol. Graphics Modelling, 24, 138, 10.1016/j.jmgm.2005.08.009 · DOI
  33. van Mourik, 2005, Characterization of the monovalent ion position and hydrogen-bond network in guanine tetrads by DFT calculations of NMR parameters, Chemistry, 7, 6064, 10.1002/chem.200500198 · doi:10.1002/chem.200500198
  34. Dingley, 2005, Characterization of the cation and temperature dependence of DNA quadruplex hydrogen bond properties using high-resolution NMR, J. Amer. Chem. Soc, 127, 14466, 10.1021/ja0540369 · DOI
  35. Aboul-ela, 1992, NMR study of parallel-stranded tetraplex formation by the hexadeoxynucleotide d(TG4T), Nature, 360, 280, 10.1038/360280a0 · DOI · Paper page
  36. Phillips, 1997, The crystal structure of a parallel-stranded guanine tetraplex at 0.95 Å resolution, J. Mol. Biol, 273, 171, 10.1006/jmbi.1997.1292 · DOI · Paper page
  37. Rueda, 2006, G-quadruplexes can maintain their structure in the gas phase, J Amer. Chem. Soc, 128, 3608, 10.1021/ja055936s · doi:10.1021/ja055936s
  38. Deng, 2001, X-ray analysis of an RNA tetraplex (UGGGGU)4 with divalent Sr(2+) ions at subatomic resolution (0.61 Å), Proc. Natl Acad. Sci. USA, 98, 13665, 10.1073/pnas.241374798 · DOI
  39. Krishnan-Ghosh, 2004, Formation of an interlocked quadruplex dimer by d(GGGT), J. Amer. Chem. Soc, 126, 11009, 10.1021/ja049259y · doi:10.1021/ja049259y
  40. Mergny, 2006, Kinetics of double-chain reversals bridging contiguous tetrads in tetramolecular quadruplexes, Nucleic Acids Res, 34, 2386, 10.1093/nar/gkl098 · DOI
  41. Cmugelj, 2003, Small change in a G-rich sequence, a dramatic change in topology: new dimeric G-quadruplex folding motif with unique loop orientations, J. Am. Chem. Soc, 125, 7866, 10.1021/ja0348694 · doi:10.1021/ja0348694
  42. Sket, 2004, d(G3T4G4) forms unusual dimeric G-quadruplex structure with the same general fold in the presence of K+, Na+ or NH4+ ions, Bioorg. Med. Chem, 12, 5735, 10.1016/j.bmc.2004.08.009 · doi:10.1016/j.bmc.2004.08.009
  43. Sket, 2005, Identification of mixed di-cation forms of G-quadruplex in solution, Nucleic Acids Res, 33, 3691, 10.1093/nar/gki690 · doi:10.1093/nar/gki690
  44. Cmugelj, 2002, The solution structure of d(G4T4G3)2: a bimolecular G-quadruplex with a novel fold, J. Mol. Biol, 320, 911, 10.1016/S0022-2836(02)00569-7 · doi:10.1016/s0022-2836(02)00569-7
  45. Smith, 1994, d(G3T4G3) forms an asymmetric diagonally looped dimeric G-quadruplex with guanosine 5′-syn-syn-anti and 5′-syn-anti-anti N-glycosidic conformations, Proc. Natl Acad. Sci. USA, 91, 10546, 10.1073/pnas.91.22.10546 · doi:10.1073/pnas.91.22.10546
  46. Strahan, 1998, NMR structure refinement and dynamics of the K+-[d(G3T4G3)]2 quadruplex via particle mesh Ewald molecular dynamics simulations, Biophys. J, 75, 968, 10.1016/S0006-3495(98)77585-X · doi:10.1016/s0006-3495(98)77585-x
  47. Cevec, 2005, Role of loop residues and cations on the formation and stability of dimeric DNA G-quadruplexes, Biochemistry, 44, 15238, 10.1021/bi0514414 · doi:10.1021/bi0514414
  48. Risitano, 2004, Influence of loop size on the stability of intramolecular DNA quadruplexes, Nucleic Acids Res, 32, 2598, 10.1093/nar/gkh598 · DOI · Paper page
  49. Spackova, 1999, Nanosecond molecular dynamics simulations of parallel and antiparallel guanine quadruplex DNA molecules, J. Amer. Chem. Soc, 121, 5519, 10.1021/ja984449s · doi:10.1021/ja984449s
  50. Spackova, 2001, Structural dynamics and cation interactions of DNA quadruplex molecules containing mixed guanine/cytosine tetrads revealed by large-scale MD simulations, J. Amer. Chem. Soc, 123, 3295, 10.1021/ja002656y · doi:10.1021/ja002656y
  51. Stefl, 2003, Formation pathways of a guanine-quadruplex DNA revealed by molecular dynamics and thermodynamic analysis of substates, Biophys. J, 85, 1787, 10.1016/S0006-3495(03)74608-6 · DOI
  52. Fadrna, 2004, Molecular dynamics simulations of guanine quadruplex loops: advances and force field limitations, Biophys. J, 87, 227, 10.1529/biophysj.103.034751 · DOI
  53. Hazel, 2006, Predictive modelling of topology and loop variations in dimeric DNA quadruplex structures, Nucleic Acids Res, 34, 2117, 10.1093/nar/gkl182 · doi:10.1093/nar/gkl182
  54. Wang, 1993, Solution structure of the human telomeric repeat d[AG3(T2AG3)3] G-tetraplex, Structure, 1, 263, 10.1016/0969-2126(93)90015-9 · DOI · Paper page
  55. Phan, 2005, An interlocked dimeric parallel-stranded DNA quadruplex: a potent inhibitor of HIV-1 integrase, Proc. Natl Acad. Sci. USA, 102, 634, 10.1073/pnas.0406278102 · DOI · Paper page
  56. Wang, 1994, Solution structure of the Tetrahymena telomeric repeat d(T2G4)4 G-tetraplex, Structure, 2, 1141, 10.1016/S0969-2126(94)00117-0 · DOI
  57. Kuryavyi, 2001, A double chain reversal loop and two diagonal loops define the architecture of a unimolecular DNA quadruplex containing a pair of stacked G(syn)-G(syn)-G(anti)-G(anti) tetrads flanked by a G-(T-T) Triad and a T-T-T triple, J. Mol. Biol, 310, 181, 10.1006/jmbi.2001.4759 · doi:10.1006/jmbi.2001.4759
  58. Petraccone, 2004, Stability and structure of telomeric DNA sequences forming quadruplexes containing four G-tetrads with different topological arrangements, Biochemistry, 43, 4877, 10.1021/bi0300985 · DOI
  59. Hazel, 2004, Loop-length-dependent folding of G-quadruplexes, J. Amer. Chem. Soc, 1286, 16405, 10.1021/ja045154j · DOI · Paper page
  60. Olsen, 2006, Unfolding of G-quadruplexes: energetic, and ion and water contributions of G-tetrad stacking, J. Phys. Chem. B, 110, 6962, 10.1021/jp0574697 · DOI
  61. Tang, 2006, Engineering the quadruplex fold: nucleoside conformation determines both folding topology and molecularity in guanine quadruplexes, J. Amer. Chem. Soc, 128, 5966, 10.1021/ja0603958 · DOI
  62. Phan, 2002, Human telomeric DNA: G-quadruplex, i-motif and Watson–Crick double helix, Nucleic Acids Res, 30, 4618, 10.1093/nar/gkf597 · DOI · Paper page
  63. Marathias, 1999, Determinants of DNA quadruplex structural type: sequence and potassium binding, Biochemistry, 38, 4355, 10.1021/bi982604+ · DOI
  64. Risitano, 2005, Inosine substitutions demonstrate that intramolecular DNA quadruplexes adopt different conformations in the presence of sodium and potassium, Bioorg. Med. Chem. Lett, 15, 2047, 10.1016/j.bmcl.2005.02.050 · DOI
  65. Rujan, 2005, Vertebrate telomere repeat DNAs favor external loop propeller quadruplex structures in the presence of high concentrations of potassium, Nucleic Acids Res, 33, 2022, 10.1093/nar/gki345 · DOI
  66. Ying, 2003, Studies on the structure and dynamics of the human telomeric G quadruplex by single-molecule fluorescence resonance energy transfer, Proc. Natl Acad. Sci. USA, 100, 14629, 10.1073/pnas.2433350100 · DOI · Paper page
  67. Lee, 2005, Extreme conformational diversity in human telomeric DNA, Proc. Natl Acad. Sci. USA, 102, 18934, 10.1073/pnas.0506144102 · DOI · Paper page
  68. Zhan, 2005, (3+1) assembly of three human telomeric repeats into an asymmetric dimeric G-quadruplex, J. Amer. Chem. Soc, 127, 17277, 10.1021/ja0543090 · DOI
  69. Balagurumoorthy, 1994, Structure and stability of human telomeric sequence, J. Biol. Chem, 269, 21858, 10.1016/S0021-9258(17)31882-3 · DOI · Paper page
  70. Li, 2005, Not so crystal clear: the structure of the human telomere G-quadruplex in solution differs from that present in a crystal, Nucleic Acids Res, 33, 4649, 10.1093/nar/gki782 · DOI · Paper page
  71. Chang, 2006, Verification of antiparallel G-quadruplex structure in human telomeres by using two-photon excitation fluorescence lifetime imaging microscopy of the 3,6-Bis(1-methyl-4-vinylpyridinium)carbazole diiodide molecule, Anal. Chem, 78, 2810, 10.1021/ac052218f · doi:10.1021/ac052218f
  72. Xu, 2006, The new models of the human telomere d[AGGG(TTAGGG)3] in K+ solution, Bioorg. Med. Chem, 14, 5584, 10.1016/j.bmc.2006.04.033 · DOI · Paper page
  73. Dapic, 2003, Biophysical and biological properties of quadruplex oligodeoxyribonucleotides, Nucleic Acids Res, 31, 2097, 10.1093/nar/gkg316 · DOI · Paper page
  74. Ambrus, 2006, Human telomeric sequence forms a hybrid-type intramolecular G-quadruplex structure with mixed parallel/antiparallel strands in potassium solution, Nucleic Acids Res, 34, 2723, 10.1093/nar/gkl348 · DOI · Paper page
  75. Simonsson, 2001, G-quadruplex DNA structures–variations on a theme, Biol. Chem, 382, 621, 10.1515/BC.2001.073 · DOI · Paper page
  76. Paces, 2002, HERVd: database of human endogenous retroviruses, Nucleic Acids Res, 30, 205, 10.1093/nar/30.1.205 · DOI
  77. Kostadinov, 2006, GRSDB: a database of quadruplex forming G-rich sequences in alternatively processed mammalian pre-mRNA sequences, Nucleic Acids Res, 34, D119, 10.1093/nar/gkj073 · DOI
  78. Zanotti, 2006, Thermodynamics of the fragile X mental retardation protein RGG box interactions with G tetrad forming RNA, Biochemistry, 45, 8319, 10.1021/bi060209a · DOI
  79. Eddy, 2006, Gene function correlates with potential for G4 DNA formation in the human genome, Nucleic Acids Res, 34, 3887, 10.1093/nar/gkl529 · DOI · Paper page
  80. Raghavan, 2004, A non-B-DNA structure at the bcl-2 major breakpoint region is cleaved by the RAG complex, Nature, 428, 88, 10.1038/nature02355 · DOI
  81. Bonaglia, 2005, Identification of a recurrent breakpoint within the SHANK3 gene in the 22q13.3 deletion syndrome
  82. Siddiqui-Jain, 2002, Direct evidence for a G-quadruplex in a promoter region and its targeting with a small molecule to repress c-MYC transcription, Proc. Natl Acad. Sci. USA, 99, 11593, 10.1073/pnas.182256799 · DOI · Paper page
  83. Liu, 2005, Binding of G-quadruplex-interactive agents to distinct G-quadruplexes induces different biological effects in MiaPaCa cells, Nucleosides Nucleotides Nucleic Acids, 24, 1801, 10.1080/15257770500267238 · DOI
  84. Shafer, 2000, Biological aspects of DNA/RNA quadruplexes, Biopolymers, 56, 209, 10.1002/1097-0282(2000/2001)56:3<209::AID-BIP10018>3.0.CO;2-Y · doi:10.1002/1097-0282(2000/2001)56:3<209::aid-bip10018>3.0.co;2-y
  85. Simonsson, 1999, DNA tetraplex formation studied with fluorescence resonance energy transfer, J. Biol. Chem, 274, 17379, 10.1074/jbc.274.24.17379 · DOI
  86. Phan, 2004, Propeller-type parallel-stranded G-quadruplexes in the human c-myc promoter, J. Amer. Chem. Soc, 126, 8710, 10.1021/ja048805k · DOI · Paper page
  87. Ambrus, 2005, Solution structure of the biologically relevant G-quadruplex element in the human c-myc promoter. Implications for G-quadruplex stabilization, Biochemistry, 44, 2048, 10.1021/bi048242p · DOI · Paper page
  88. Phan, 2005, Small-molecule interaction with a five-guanine-tract G-quadruplex structure from the human MYC promoter, Nature Chem. Biol, 1, 167, 10.1038/nchembio723 · DOI · Paper page
  89. Rankin, 2005, Putative DNA quadruplex formation within the human c-kit oncogene, J. Amer. Chem. Soc, 127, 10584, 10.1021/ja050823u · doi:10.1021/ja050823u
  90. Fernando, 2006, A conserved quadruplex motif located in a transcription activation site of the human c-kit oncogene, Biochemistry, 45, 7854, 10.1021/bi0601510 · doi:10.1021/bi0601510
  91. Sun, 2005, Facilitation of a structural transition in the polypurine/polypyrimidine tract within the proximal promoter region of the human VEGF gene by the presence of potassium and G-quadruplex-interactive agents, Nucleic Acids Res, 33, 6070, 10.1093/nar/gki917 · doi:10.1093/nar/gki917
  92. De Armond, 2005, Evidence for the presence of a guanine quadruplex forming region within a polypurine tract of the hypoxia inducible factor 1alpha promoter, Biochemistry, 44, 16341, 10.1021/bi051618u · DOI · Paper page
  93. Dai, 2006, An intramolecular G-quadruplex structure with mixed parallel/antiparallel G-strands formed in the human BCL-2 promoter region in solution, J. Amer. Chem. Soc, 128, 1096, 10.1021/ja055636a · DOI · Paper page
  94. Dexheimer, 2006, Deconvoluting the structural and drug-recognition complexity of the G-quadruplex-forming region upstream of the bcl-2 P1 promoter, J. Amer. Chem. Soc, 128, 5404, 10.1021/ja0563861 · DOI · Paper page
  95. Luu, 2006, Structure of the human telomere in K+ solution: an intramolecular (3 + 1) G-quadruplex scaffold, J. Amer. Chem. Soc, 128, 9963, 10.1021/ja062791w · DOI · Paper page
  96. Cogio, 2006, G-quadruplex formation within the promoter of the KRAS proto-oncogene and its effect on transcription, Nucleic Acids Res, 34, 2536, 10.1093/nar/gkl286 · DOI · Paper page
  97. Xu, 2006, Formation of the G-quadruplex and i-motif structures in retinoblastoma susceptibility genes (Rb), Nucleic Acids Res, 34, 949, 10.1093/nar/gkj485 · DOI · Paper page
  98. Krishnan-Ghosh, 2004, A PNA4 quadraplex, J. Amer. Chem. Soc, 126, 5944, 10.1021/ja031508f · DOI
  99. Datta, 2005, Quadruplex formation by a guanine-rich PNA oligomer, J. Amer. Chem. Soc, 127, 4199, 10.1021/ja0446202 · DOI
  100. Randazzo, 2004, NMR solution structure of a parallel LNA quadruplex, Nucleic Acids Res, 32, 3083, 10.1093/nar/gkh629 · doi:10.1093/nar/gkh629
  101. Nielsen, 2006, NMR solution structures of LNA (locked nucleic acid) modified quadruplexes, Nucleic Acids Res, 34, 2006, 10.1093/nar/gkl144 · doi:10.1093/nar/gkl144
  102. Matsugami, 2003, Intramolecular higher order packing of parallel quadruplexes comprising a G:G:G:G tetrad and a G(:A):G(:A):G(:A):G heptad of GGA triplet repeat DNA, J. Biol. Chem, 278, 28147, 10.1074/jbc.M303694200 · DOI
  103. Khateb, 2004, Destabilization of tetraplex structures of the fragile X repeat sequence (CGG)n is mediated by homolog-conserved domains in three members of the hnRNP family, Nucleic Acids Res, 32, 4145, 10.1093/nar/gkh745 · DOI
  104. Duquette, 2004, Intracellular transcription of G-rich DNAs induces formation of G-loops, novel structures containing G4 DNA, Genes Dev, 18, 1618, 10.1101/gad.1200804 · DOI · Paper page
  105. Ju, 2006, A topoisomerase IIß-mediated dsDNA break required for regulated transcription, Science, 312, 1798, 10.1126/science.1127196 · DOI · Paper page
  106. Rangan, 2001, Induction of duplex to G-quadruplex transition in the c-myc promoter region by a small molecule, J. Biol. Chem, 276, 4640, 10.1074/jbc.M005962200 · DOI · Paper page

Cited by

See all 2,408

Metadata

Authors
Burge, S., Parkinson, G. N., Hazel, P., Todd, A. K., & Neidle, S.
Venue
Nucleic Acids Research
Published
2006-09-29
Volume
34
Issue
19
Pages
5402-5415
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2171830519
Cited by
2,408
References
1
FWCI
26.03
Type
journal article
Language
en
Open access
gold

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Quadruplex DNA: sequence, topology and structure. https://app.cochat.ai/papers/10.1093/nar/gkl655
The paper
Burge, S., Parkinson, G. N., Hazel, P., Todd, A. K., & Neidle, S. (2006). Quadruplex DNA: sequence, topology and structure. Nucleic Acids Research. https://doi.org/10.1093/nar/gkl655

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.