1O0K

Structure of the First Parallel DNA Quadruplex-drug Complex

Summary for 1O0K

Entry DOI	10.2210/pdb1o0k/pdb
Descriptor	5'-D(TPGPGPGPGPT)-3', SODIUM ION, DAUNOMYCIN, ... (4 entities in total)
Functional Keywords	g-4 quadruplex drug complex, parallel quadruplex, dna
Total number of polymer chains	4
Total formula weight	9172.53
Authors	Clark, G.R.,Pytel, P.D.,Squire, C.J.,Neidle, S. (deposition date: 2003-02-22, release date: 2003-04-15, Last modification date: 2024-04-03)
Primary citation	Clark, G.R.,Pytel, P.D.,Squire, C.J.,Neidle, S. Structure of the First Parallel DNA Quadruplex-drug Complex J.Am.Chem.Soc., 125:4066-4067, 2003 Cited by PubMed Abstract: The first crystal structure of a drug (daunomycin) bound to a parallel-stranded intermolecular telomeric G4 quadruplex (d(TGGGGT)4) has been determined to high resolution. A planar assemblage of three daunomycin molecules stacks onto the 5' end of the G4 column, with the daunosamine substituents occupying three of the four quadruplex grooves. The surface area of the terminal G-quartet in this parallel DNA quadruplex, presently occupied by three daunomycins, is sufficiently large that it could easily accommodate other potential telomerase inhibitors such as substituted porphyrins or telomestatin. PubMed: 12670225 DOI: 10.1021/ja0297988 PDB entries with the same primary citation
Experimental method	X-RAY DIFFRACTION (1.17 Å)

Structure validation