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- PDB-1x26: Solution structure of the AA-mismatch DNA complexed with naphthyr... -

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Basic information

Entry
Database: PDB / ID: 1x26
TitleSolution structure of the AA-mismatch DNA complexed with naphthyridine-azaquinolone
Components
  • 5'-D(*CP*AP*TP*TP*CP*AP*GP*TP*TP*AP*G)-3'
  • 5'-D(*CP*TP*AP*AP*CP*AP*GP*AP*AP*TP*G)-3'
KeywordsDNA / AA mismatch / drug
Function / homologyChem-NAZ / DNA / DNA (> 10)
Function and homology information
MethodSOLUTION NMR / simulated annealing
AuthorsNakatani, K. / Hagihara, S. / Goto, Y. / Kobori, A. / Hagihara, M. / Hayashi, G. / Kyo, M. / Nomura, M. / Mishima, M. / Kojima, C.
CitationJournal: Nat.Chem.Biol. / Year: 2005
Title: Small-molecule ligand induces nucleotide flipping in (CAG)n trinucleotide repeats
Authors: Nakatani, K. / Hagihara, S. / Goto, Y. / Kobori, A. / Hagihara, M. / Hayashi, G. / Kyo, M. / Nomura, M. / Mishima, M. / Kojima, C.
History
DepositionApr 20, 2005Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 4, 2006Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Mar 2, 2022Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / database_2 ...chem_comp / database_2 / entity / pdbx_entity_nonpoly / pdbx_nmr_spectrometer / pdbx_struct_assembly / pdbx_struct_oper_list / struct_site
Item: _chem_comp.name / _database_2.pdbx_DOI ..._chem_comp.name / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _pdbx_nmr_spectrometer.model / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 5'-D(*CP*TP*AP*AP*CP*AP*GP*AP*AP*TP*G)-3'
B: 5'-D(*CP*AP*TP*TP*CP*AP*GP*TP*TP*AP*G)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)7,6334
Polymers6,7142
Non-polymers9192
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
NMR ensembles
DataCriteria
Number of conformers (submitted / calculated)30 / 150structures with the lowest energy
RepresentativeModel #1lowest energy

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Components

#1: DNA chain 5'-D(*CP*TP*AP*AP*CP*AP*GP*AP*AP*TP*G)-3'


Mass: 3366.237 Da / Num. of mol.: 1 / Source method: obtained synthetically
#2: DNA chain 5'-D(*CP*AP*TP*TP*CP*AP*GP*TP*TP*AP*G)-3'


Mass: 3348.209 Da / Num. of mol.: 1 / Source method: obtained synthetically
#3: Chemical ChemComp-NAZ / N~3~-{3-[(7-METHYL-1,8-NAPHTHYRIDIN-2-YL)AMINO]-3-OXOPROPYL}-N~1~-[(7-OXO-7,8-DIHYDRO-1,8-NAPHTHYRIDIN-2-YL)METHYL]-BET A-ALANINAMIDE / NAPHTYRIDINE-AZAQUINOLONE


Mass: 459.500 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C24H25N7O3

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Experimental details

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Experiment

ExperimentMethod: SOLUTION NMR
NMR experiment
Conditions-IDExperiment-IDSolution-IDType
1112D TOCSY
1212D NOESY
2322D TOCSY
2422D NOESY
151DQF-COSY
NMR detailsText: This structure was determined using standard 2D homonuclear techniques

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Sample preparation

DetailsContents: 50mM phosphate buffer NA, 100mM NaCl, 0.1mM EDTA / Solvent system: 90% H2O/10% D2O
Sample conditions
Conditions-IDIonic strengthpHPressure (kPa)Temperature (K)
11506.5ambient 293 K
21506.5ambient 303 K

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NMR measurement

NMR spectrometer
TypeManufacturerModelField strength (MHz)Spectrometer-ID
Bruker AVANCEBrukerAVANCE5001
Bruker DRXBrukerDRX8002

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Processing

NMR software
NameVersionDeveloperClassification
MARDIGRAS3Liu, H.refinement
CNS1.1Brunger, A.T.structure solution
RefinementMethod: simulated annealing / Software ordinal: 1
NMR representativeSelection criteria: lowest energy
NMR ensembleConformer selection criteria: structures with the lowest energy
Conformers calculated total number: 150 / Conformers submitted total number: 30

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