X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details 28% PEG 4000, 100 MM SODIUM ACETATE, 100 MM TRIS-HCL AT PH 8.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.4 α = 90
b = 83.5 β = 90
c = 93.4 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 290
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1994-06-09
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
1.93 25.44 94.0 0.061 -- -- 3.1 -- 25695 -- -- 23.66
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)
1.93 1.97 72.3 0.25 -- 5.3 2.2 --

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
MR + MIR 1.93 15.0 -- 2.0 -- 23147 1122 84.5 -- 0.188 0.188 0.232 FREERFLAG (CCP4 2.15)
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 1.93 1.97 -- 53 1101 0.286 0.268 -- 61.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 32.7
Anisotropic B[1][1] -12.8
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 7.01
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.78
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 1.66
x_scbond_it 1.38
x_improper_angle_d 1.22
x_bond_d 0.01
x_angle_deg 1.6
x_dihedral_angle_d 27.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2675
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 175

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 V. 2.13 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
AGROVATA version: (CCP4 2.13) data reduction
ROTAVATA data reduction
MOSFLM data collection