X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details PROTEIN WAS CRYSTALLIZED FROM 26-29% PEG400, 0.2M SODIUM CITRATE, 0.1M TRIS/HCL PH8.5, pH 8.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 171.65 α = 90
b = 171.65 β = 90
c = 124.16 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 1999-09-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-3 -- ESRF ID14-3

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
2.65 30 94.6 0.04 -- -- 5.9 -- 19276 -- -- --
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)
2.65 2.79 96.7 0.164 -- 4.0 5.7 --

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
MAD 2.7 30.0 -- 0.0 -- 19276 886 93.8 -- 0.231 0.231 0.286 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.7 2.76 -- 49 1052 0.353 0.424 -- 96.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 33.8
Anisotropic B[1][1] -3.496
Anisotropic B[1][2] -6.677
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.496
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 6.993
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.599
c_scbond_it 1.558
c_mcangle_it 2.709
c_mcbond_it 1.49
c_bond_d 0.005
c_angle_deg 1.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4107
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 33

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHAKE-N-BAKE V. 2.1, SHARP, SOLOMON Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
SOLOMON model building
SHARP model building
SHAKE-N-BAKE version: V. 2.1 model building