X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1ZRCsearch 1: 1ZRC CAP N-terminal domain dimer; searches 2,3: 1ZRC CAP individual C-terminal domain

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5293A CAP-DNA complex was screened by hanging-drop vapor diffusion with Hampton Research Crystal Screens and pregreased VDX plates. Optimization of Crystal Screen 2 condition #25 yielded ruby-red colored crystals appearing within 3 days at 20 C in 0.01 M CoCl2.6H2O, 0.1 M MES monohydrate pH 6.5 and 2.5 M (NH4)2SO4. The crystallization process yielded crystals containing only CAP protein without DNA, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.6653.72

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 104.143α = 90
b = 108.452β = 90
c = 44.32γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray108CCDADSC QUANTUM 42007-11-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X8C1.07NSLSX8C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.965097.10.0889.55.13564535645
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.962.0390.50.7784.23280

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTsearch 1: 1ZRC CAP N-terminal domain dimer; searches 2,3: 1ZRC CAP individual C-terminal domain1.96640.7811.343564535596177497.30.19770.19590.23random35.2859
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]
0.6641-0.4729-0.1912
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d16.888
f_angle_deg1
f_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3163
Nucleic Acid Atoms
Solvent Atoms409
Heterogen Atoms111

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
CBASSdata collection
PHASERphasing