X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 18.0
Details PEG4000, glycerol, sodium acetate, DTT, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 18K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 39.67 α = 90
b = 51.96 β = 90
c = 112.23 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-05-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID2 -- ESRF ID2

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 20 98.3 0.039 -- -- 3.5 18951 18625 0.0 0.0 33.0
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)
1.9 2.0 98.5 -- 0.146 4.9 3.3 2679

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 PLUS SIR 1.9 20.0 0.0 0.0 18951 18625 944 98.3 0.2185 0.2185 0.2171 0.2458 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 1.9 1.97 -- 101 1715 0.227 0.268 -- 98.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 33.32
Anisotropic B[1][1] 1.629
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -12.176
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 10.547
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.2
c_scangle_it 3.35
c_bond_d 0.011
c_scbond_it 2.49
c_dihedral_angle_d 25.32
c_angle_deg 1.57
c_mcbond_it 1.55
c_improper_angle_d 0.923
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1488
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 124

Software

Software
Software Name Purpose
SHARP phasing
CNS refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)