X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 298.0
Details PEG 3350, amonium acetate, magnesium acetate, Tris, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 49.28 α = 90
b = 95.14 β = 90
c = 229.95 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 QUANTUM 4 mirrors 1999-08-24
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C 1.006 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
1.9 20 -- 0.068 -- -- -- -- 77350 0.0 0.0 --
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 -- 82.4 0.248 -- -- -- --

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 and MIR 1.9 19.88 -- -- -- 75799 1548 100.0 -- 0.15753 0.15642 0.21224 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 1.905 1.954 -- 98 4873 0.161 0.234 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.781
Anisotropic B[1][1] 0.7
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.19
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.89
RMS Deviations
Key Refinement Restraint Deviation
r_chiral_restr 0.107
r_gen_planes_refined 0.007
r_scbond_it 2.403
r_mcangle_it 1.507
r_nbd_refined 0.212
r_mcbond_it 0.847
r_dihedral_angle_3_deg 15.891
r_angle_refined_deg 1.443
r_bond_refined_d 0.016
r_symmetry_vdw_refined 0.202
r_xyhbond_nbd_refined 0.178
r_symmetry_hbond_refined 0.197
r_dihedral_angle_1_deg 6.657
r_scangle_it 3.728
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7754
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 1666

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
REFMAC 5.1.08 Structure Refinement
Software
Software Name Purpose
DENZO data collection
SCALEPACK data reduction
CNS refinement
CNS model building