X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.5
Temperature 272.0
Details PEG 4000, sodium acetate, zinc chloride, pH 5.5, VAPOR DIFFUSION, SITTING DROP at 272K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 37.28 α = 90
b = 44.2 β = 90
c = 121.42 γ = 90
Symmetry
Space Group P 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-12-27
Diffraction Radiation
Monochromator Protocol
double crystal MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F2 0.9795, 0.9793, 0.9640 CHESS F2

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
1.9 60 90.9 0.06 -- -- 6.0 -- 14922 -- 1.5 --

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
MAD 1.9 30.0 -- 3.0 -- 14172 723 90.2 0.199 0.19969 0.19802 0.23264 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 36.6
RMS Deviations
Key Refinement Restraint Deviation
p_hb_or_metal_coord 0.171
p_chiral_restr 0.065
p_plane_restr 0.005
p_planar_d 0.005
p_angle_d 1.199
p_angle_deg 1.199
p_bond_d 0.016
p_scangle_it 27.975
p_scbond_it 22.186
p_mcangle_it 10.581
p_mcbond_it 8.157
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1293
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 94

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHARP Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
SHARP model building
SCALA data reduction
MOSFLM data collection