X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Details 2.5-5% PEG 400; 500-700MM NACL; 25MM BIS-TRIS PROPANE, PH 8.0, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.4 α = 90
b = 56.2 β = 90
c = 130.8 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC YALE MIRRORS 1994-08-01
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
1.6 20 96.6 0.062 0.025 -- 6.5 -- 22749 -2.0 -2.0 --
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)
1.6 1.66 92.8 0.534 0.223 2.0 4.0 --

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 1.6 6.0 -- 2.0 -- 19207 2312 87.0 0.203 0.195 0.195 0.242 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 1.6 1.67 -- 242 1674 0.266 0.286 -- 70.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED INDIVIDUAL
Mean Isotropic B 30.0
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 3.3
x_scbond_it 2.03
x_mcangle_it 2.38
x_mcbond_it 1.46
x_improper_angle_d_na 0.6
x_improper_angle_d 1.23
x_bond_d 0.007
x_bond_d_na 0.009
x_angle_deg 1.29
x_angle_deg_na 3.02
x_dihedral_angle_d 22.8
x_dihedral_angle_d_na 29.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 712
Nucleic Acid Atoms 445
Heterogen Atoms 3
Solvent Atoms 148

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building