X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Details 18% PEG 4000, 0.2M NACL, 0.05M NA-ACETATE (PH 4.1-4.6), 0.01M K-FERRICYANIDE, 1MM KCN

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.84 α = 90
b = 70.05 β = 90
c = 102.07 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 MARRESEARCH -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID23-2 -- ESRF ID23-2

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
2.8 57.7 99.8 0.11 -- -- 3.5 -- 9092 -- 3.0 --
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)
2.8 2.95 100.0 0.42 -- 3.3 3.6 --

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 2.8 57.74 -- -- -- 8150 907 99.7 -- 0.21371 0.20658 0.27727 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 2.8 2.873 -- 73 584 0.255 0.336 -- 100.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.453
Anisotropic B[1][1] -3.71
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.35
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.05
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 1.167
r_scbond_it 0.674
r_gen_planes_refined 0.004
r_mcangle_it 0.427
r_chiral_restr 0.073
r_dihedral_angle_1_deg 4.422
r_bond_refined_d 0.007
r_dihedral_angle_2_deg 33.315
r_dihedral_angle_3_deg 20.116
r_angle_refined_deg 1.02
r_dihedral_angle_4_deg 21.782
r_mcbond_it 0.212
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2462
Nucleic Acid Atoms 0
Heterogen Atoms 120
Solvent Atoms 22

Software

Software
Software Name Purpose
REFMAC refinement version: 5.5.0102
MOSFLM data reduction
SCALA data scaling
PHASER phasing