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- PDB-2k71: Structure and dynamics of a DNA GNRA hairpin solved vy high-sensi... -
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Basic information
Entry | Database: PDB / ID: 2k71 | ||||||||||||||||||||
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Title | Structure and dynamics of a DNA GNRA hairpin solved vy high-sensitivity NMR with two independent converging methods, simulated annealing (DYANA) and mesoscopic molecular modelling (BCE/AMBER) | ||||||||||||||||||||
![]() | 5'-D(*![]() DNA / tetraloop hairpin / B-DNA-like / 2 non canonical torsions / unusual BIIz+ torsions | Function / homology | DNA | ![]() Method | SOLUTION NMR / simulated annealing, Biopolymer Chain Elasticity approach | Model details | DNA GNRA tetraloop structure | ![]() Santini, G.P.H. / Cognet, J.A.H. / Xu, D. / Singarapu, K.K. / Herve du Penhoat, C.L.M. | ![]() ![]() Title: Nucleic acid folding determined by mesoscale modeling and NMR spectroscopy: solution structure of d(GCGAAAGC). Authors: Santini, G.P. / Cognet, J.A. / Xu, D. / Singarapu, K.K. / Herve du Penhoat, C. History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 89.6 KB | Display | ![]() |
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PDB format | ![]() | 60.2 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 299.5 KB | Display | ![]() |
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Full document | ![]() | 372.2 KB | Display | |
Data in XML | ![]() | 3.3 KB | Display | |
Data in CIF | ![]() | 5.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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NMR ensembles |
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Components
#1: DNA chain | Mass: 2460.644 Da / Num. of mol.: 1 / Fragment: DNA GNRA hairpin / Source method: obtained synthetically |
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-Experimental details
-Experiment
Experiment | Method: SOLUTION NMR / Details: DNA GNRA tetraloop structure | ||||||||||||||||||||||||
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NMR experiment |
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Sample preparation
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Sample |
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Sample conditions |
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-NMR measurement
NMR spectrometer |
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Processing
NMR software |
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Refinement | Method: simulated annealing, Biopolymer Chain Elasticity approach Software ordinal: 1 Details: 100 structures were used in DYANA simulated annealing approach to give models 1 to 20 that were energy-refined with AMBER, Model number 21 was constructed with the BCE approach in agreement ...Details: 100 structures were used in DYANA simulated annealing approach to give models 1 to 20 that were energy-refined with AMBER, Model number 21 was constructed with the BCE approach in agreement with the NMR data and then energy-refined with AMBER | ||||||||||||||||||
NMR representative | Selection criteria: fewest violations | ||||||||||||||||||
NMR ensemble | Conformer selection criteria: structures with the least restraint violations Conformers calculated total number: 101 / Conformers submitted total number: 21 |