X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM PEG-600 25-35% (V/V) IN 50-100 MM HEPES, PH 6.0-7.0, OR WITH PEG-550 MME 30% (V/V) IN 50 MM NA ACETATE, PH 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 79.58 α = 90
b = 112.07 β = 90
c = 226.89 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
CCD ADSC CCD -- 2003-10-12
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-1 -- ESRF ID14-1

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
2.55 20 99.5 0.06 -- -- 3.8 -- 66465 -- 2.0 58.3
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)
2.55 2.62 99.5 0.47 -- 4.2 3.8 --

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
MOLECULAR REPLACEMENT 2.55 20.0 -- -- -- 64934 1343 99.24 -- 0.19149 0.19087 0.22074 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 2.55 2.615 -- 96 4604 0.28 0.342 -- 99.22
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 50.488
Anisotropic B[1][1] 3.93
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.36
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -6.29
RMS Deviations
Key Refinement Restraint Deviation
r_dihedral_angle_2_deg 33.591
r_gen_planes_refined 0.007
r_mcangle_it 1.034
r_dihedral_angle_1_deg 6.179
r_dihedral_angle_4_deg 17.144
r_scbond_it 1.707
r_bond_refined_d 0.012
r_chiral_restr 0.097
r_angle_refined_deg 1.405
r_dihedral_angle_3_deg 16.036
r_scangle_it 2.93
r_mcbond_it 0.523
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8291
Nucleic Acid Atoms 0
Heterogen Atoms 147
Solvent Atoms 256

Software

Software
Software Name Purpose
REFMAC refinement version: 5.5.0109
HKL-2000 data reduction
SCALA data scaling
REFMAC phasing