X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.2
Details DROP: PROTEIN 5MG/ML, TRISCL 20MM PH=7.2, LICL 300MM, NAN3 3 MM, PEG600 10-18% RESERVOIR: PEG600 30-38%

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 104.25 α = 90
b = 104.25 β = 90
c = 124.93 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-07
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
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
2.19 19.54 99.29 0.056 0.056 -- 3.7 -- 25831 -- -- 34.2
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)
2.19 2.31 95.4 0.223 0.223 3.3 3.5 --

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
DIFFERENCE FOURIER 2.19 19.54 -- 1.0 -- 25831 2600 99.29 -- -- 0.153 0.181 SAME AS WILD-TYPE
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 33.2
RMS Deviations
Key Refinement Restraint Deviation
p_planar_tor 3.9
p_planar_d 0.05
p_scbond_it 2.893
p_multtor_nbd 0.25
p_bond_d 0.022
p_mcangle_it 1.843
p_singtor_nbd 0.188
p_chiral_restr 0.229
p_xyhbond_nbd 0.188
p_angle_d 0.025
p_hb_or_metal_coord 0.188
p_mcbond_it 1.562
p_plane_restr 0.0176
p_staggered_tor 16.9
p_scangle_it 4.597
p_transverse_tor 19.9
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2167
Nucleic Acid Atoms 0
Heterogen Atoms 63
Solvent Atoms 142

Software

Software
Software Name Purpose
CCP4 model building
REFMAC refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
CCP4 phasing