1ftd
From Proteopedia
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|PDB= 1ftd |SIZE=350|CAPTION= <scene name='initialview01'>1ftd</scene>, resolution 2.Å | |PDB= 1ftd |SIZE=350|CAPTION= <scene name='initialview01'>1ftd</scene>, resolution 2.Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=DA:2'-DEOXYADENOSINE-5'-MONOPHOSPHATE'>DA</scene>, <scene name='pdbligand=DC:2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE'>DC</scene>, <scene name='pdbligand=DG:2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE'>DG</scene>, <scene name='pdbligand=DT:THYMIDINE-5'-MONOPHOSPHATE'>DT</scene>, <scene name='pdbligand=E97:[3-(4-{2'-[4-(3-DIMETHYLAMINO-PROPOXY)-PHENYL]-3H,3'H-[5,5']BIBENZOIMIDAZOLYL-2-YL}-PHENOXY)-PROPYL]-DIMETHYL-AMINE'>E97</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ftd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ftd OCA], [http://www.ebi.ac.uk/pdbsum/1ftd PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ftd RCSB]</span> | ||
}} | }} | ||
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[[Category: Opoku-Boahen, Y.]] | [[Category: Opoku-Boahen, Y.]] | ||
[[Category: Parkinson, G.]] | [[Category: Parkinson, G.]] | ||
| - | [[Category: E97]] | ||
| - | [[Category: MG]] | ||
[[Category: minor groove binding]] | [[Category: minor groove binding]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:29:57 2008'' |
Revision as of 17:30, 30 March 2008
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| , resolution 2.Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , , , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'-SYMMETRIC BIS-BENZIMIDAZOLE COMPLEX
Overview
The synthesis and evaluation of the novel head-to-head bisbenzimidazole compound 2,2-bis[4'-(3' '-dimethylamino-1' '-propyloxy)phenyl]-5,5-bi-1H-benzimidazole is described. An X-ray crystallographic study of a complex with the DNA dodecanucleotide sequence d(CGCGAATTCGCG) shows the compound bound in the A/T minor groove region of a B-DNA duplex and that the head-to-head bisbenzimidazole motif hydrogen-bonds to the edges of all four consecutive A:T base pairs. The compound showed potent growth inhibition with a mean IC(50) across an ovarian carcinoma cell line panel of 0.31 microM, with no significant cross-resistance in two acquired cisplatin-resistant cell lines and a low level of cross-resistance in the P-glycoprotein overexpressing acquired doxorubicin-resistant cell line. Studies with the hollow fiber assay and in vivo tumor xenografts showed some evidence of antitumor activity.
About this Structure
1FTD is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
A new class of symmetric bisbenzimidazole-based DNA minor groove-binding agents showing antitumor activity., Mann J, Baron A, Opoku-Boahen Y, Johansson E, Parkinson G, Kelland LR, Neidle S, J Med Chem. 2001 Jan 18;44(2):138-44. PMID:11170623
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