3OH9

AlkA Undamaged DNA Complex: Interrogation of a T:A base pair


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP29825-29% peg3350, 100mM bistris, 200mM Li2SO4, 3% 6-aminocaproic acid, pH 6.0-6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.8657.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 139.9α = 90
b = 139.9β = 90
c = 91.1γ = 90
Symmetry
Space GroupI 41 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray77CCDADSC QUANTUM 42009-04-15SAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-C0.91970APS24-ID-C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.850195291952954.06

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENT1DIZ2.80241.3750.151952997491.920.20730.20470.256667.4133
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
1.69091.6909-3.3819
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d23.135
f_angle_d1.047
f_chiral_restr0.061
f_bond_d0.007
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2254
Nucleic Acid Atoms445
Solvent Atoms1
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing