X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 4.5
Details 30 % PEG 1500, PH 4.5 FOR ACETATE BUFFER METHOD: HANGING DROP VAPOUR DIFFUSION, vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.49 α = 90
b = 95.48 β = 90
c = 40.52 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC FOCUSING MIRRORS 1997-02-17
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU FR-C -- -- --

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
1.75 15 95.6 0.047 -- -- 6.98 -- 18747 -- -- 18.51
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)
1.75 1.78 68.5 0.245 -- 5.96 3.21 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 1.75 15.0 -- -- -- 17769 978 95.6 -- -- 0.187 0.24 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.4
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.012
p_mcangle_it 2.927
p_mcbond_it 2.157
p_singtor_nbd 0.172
p_planar_d 0.034
p_scangle_it 4.227
p_multtor_nbd 0.242
p_scbond_it 3.384
p_angle_d 0.03
p_orthonormal_tor 27.8
p_chiral_restr 0.139
p_planar_tor 4.5
p_xyhbond_nbd 0.177
p_staggered_tor 14.7
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1655
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 200

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
MLPHARE phasing
REFMAC refinement