X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 9
Temperature 295.0
Details 2.3 - 2.4 M AMMONIUM SULFATE, 0.1 M BICINE pH 9.0, VAPOR DIFFUSION, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.5 α = 90
b = 65.5 β = 90
c = 64.35 γ = 120
Symmetry
Space Group P 63

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-10-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C -- NSLS X26C

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 50 91.5 0.052 -- -- 4.4 83186 18480 0.0 0.0 15.0
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 97.7 0.289 -- 2.7 -- --

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
MIR 1.6 20.0 0.0 0.0 17478 17478 970 91.5 0.206 0.206 0.205 0.226 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 1.62 1.7 -- -- 2456 0.221 0.249 -- 5.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.7
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 4.627
p_scbond_it 3.197
p_mcangle_it 3.433
p_bond_d 0.012
p_angle_d 0.03
p_planar_d 0.037
p_plane_restr 0.021
p_chiral_restr 0.12
p_singtor_nbd 0.189
p_multtor_nbd 0.257
p_xyhbond_nbd 0.153
p_planar_tor 3.8
p_staggered_tor 14.6
p_transverse_tor 21.7
p_mcbond_it 2.582
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1375
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 160

Software

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