X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.5
Temperature 291.0
Details 20% PEG 3350, 350 mM sodium acetate, 50 mM imidazole at 18 degrees (C), pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.2 α = 90
b = 81 β = 106.1
c = 55.6 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 200
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B -- NSLS X9B

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
3.1 20 81.4 0.119 -- -- 2.3 -- 7613 -- -- --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
3.1 3.21 71.7 0.255 -- 3.3 -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 3.1 20.0 -- 0.0 -- 7060 332 81.8 0.26 0.26 0.257 0.317 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 43.2
Anisotropic B[1][1] -11.78
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -2.88
Anisotropic B[2][2] -11.54
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 23.33
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 1.979
c_scbond_it 1.97
c_mcangle_it 1.21
c_mcbond_it 1.135
c_angle_deg 0.8
c_bond_d 0.004
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2613
Nucleic Acid Atoms 632
Heterogen Atoms 24
Solvent Atoms 4

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
CNS model building
SCALEPACK data reduction
DENZO data collection