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6N4G

Crystal structure of a tetrameric DNA fold-back quadruplex

Replaces:  6MC5
Experimental procedure
Experimental methodSINGLE WAVELENGTH
Source typeSYNCHROTRON
Source detailsAPS BEAMLINE 23-ID-D
Synchrotron siteAPS
Beamline23-ID-D
Temperature [K]100
Detector technologyPIXEL
Collection date2017-04-23
DetectorDECTRIS PILATUS3 S 6M
Wavelength(s)0.92
Spacegroup nameI 1 2 1
Unit cell lengths26.329, 53.705, 34.233
Unit cell angles90.00, 102.04, 90.00
Refinement procedure
Resolution28.410 - 1.400
R-factor0.15053
Rwork0.147
R-free0.21915
Structure solution methodMOLECULAR REPLACEMENT
RMSD bond length0.013
RMSD bond angle1.806
Data reduction softwareXDS
Data scaling softwareAimless
Phasing softwarePHASER
Refinement softwareREFMAC (5.8.0155)
Data quality characteristics
 OverallOuter shell
Low resolution limit [Å]28.4101.420
High resolution limit [Å]1.4001.400
Rmerge0.0800.336
Rpim0.0520.224
Number of reflections9187452
<I/σ(I)>8.1
Completeness [%]99.5
Redundancy3.3
Crystallization Conditions
crystal IDmethodpHtemperaturedetails
1VAPOR DIFFUSION, SITTING DROP6.429515% MPD, 120 mM barium chloride, 30 mM sodium cacodylate, equilibrated against 20% MPD

219140

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