X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 2.2 M AMMONIUM SULPHATE, 0.1 M TRIS PH 7.5, 25 % GLYCEROL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 102.94 α = 90
b = 102.94 β = 90
c = 193.13 γ = 90
Symmetry
Space Group P 41

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2008-06-12
Diffraction Radiation
Monochromator Protocol
KMC-2 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON BESSY BEAMLINE 14.2 -- BESSY 14.2

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
3 48 99.9 0.11 -- -- 4.5 -- 44389 -- 2.0 --
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)
3.0 3.19 99.8 0.36 -- 3.6 4.5 --

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
MOLECULAR REPLACEMENT 3.0 103.14 -- -- -- 33190 1788 87.1 -- 0.239 0.238 0.262 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 3.0 3.08 -- 131 2431 0.363 0.371 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 70.03
Anisotropic B[1][1] 3.89
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.89
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.78
RMS Deviations
Key Refinement Restraint Deviation
r_nbd_refined 0.186
r_angle_refined_deg 1.102
r_scangle_it 0.655
r_scbond_it 0.375
r_dihedral_angle_3_deg 17.712
r_bond_refined_d 0.006
r_xyhbond_nbd_refined 0.107
r_chiral_restr 0.07
r_nbtor_refined 0.3
r_gen_planes_refined 0.002
r_mcbond_it 0.281
r_dihedral_angle_1_deg 4.704
r_dihedral_angle_4_deg 16.71
r_symmetry_vdw_refined 0.145
r_dihedral_angle_2_deg 34.582
r_mcangle_it 0.51
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7358
Nucleic Acid Atoms 0
Heterogen Atoms 214
Solvent Atoms 26

Software

Software
Software Name Purpose
REFMAC refinement version: 5.2.0019
DENZO data reduction
SCALEPACK data scaling
MOLREP phasing