X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 293.0
Details PEG 4000, ammonium sulfate, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.41 α = 90
b = 85.72 β = 90
c = 133.19 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 190
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4r -- 2000-03-20
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C -- NSLS X8C

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
1.95 99 97.2 0.087 -- -- 11.1 45706 44409 1.0 2.0 17.2
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)
1.95 2.02 92.2 0.293 -- -- 4.94 --

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
-- 1.95 50.37 2.0 1.0 45706 44409 2226 97.1 0.243 0.201 0.201 0.243 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 32.92
Anisotropic B[1][1] -9.567
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.131
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 8.435
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.005618
c_scangle_it 3.105
c_angle_deg 1.3154
c_mcbond_it 1.302
c_improper_angle_d 0.9
c_dihedral_angle_d 23.4
c_scbond_it 2.151
c_mcangle_it 1.954
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.23
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4698
Nucleic Acid Atoms 0
Heterogen Atoms 41
Solvent Atoms 616

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing