X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.4
Temperature 298.0
Details 1.6 M Ammonium sulfate, 100 mM succinate, pH 4.4, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 93.79 α = 90
b = 93.79 β = 90
c = 93.79 γ = 90
Symmetry
Space Group P 21 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-11-13
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C 0.9792 APS 14-BM-C

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
1.6 90 88.5 0.28 -- -- -- 29827 29827 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)
1.6 1.66 56.8 0.201 -- 4.7 -- --

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 1.6 65.94 -- 0.0 26642 25348 1294 81.8 -- 0.17381 0.17279 0.19269 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 1.6 1.642 -- 32 645 0.273 0.253 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.062
RMS Deviations
Key Refinement Restraint Deviation
r_xyhbond_nbd_refined 0.125
r_gen_planes_other 0.001
r_angle_refined_deg 1.293
r_bond_refined_d 0.011
r_scbond_it 2.102
r_symmetry_hbond_refined 0.142
r_bond_other_d 0.002
r_symmetry_vdw_other 0.301
r_symmetry_vdw_refined 0.274
r_nbd_other 0.239
r_mcangle_it 1.261
r_chiral_restr 0.107
r_mcbond_it 0.665
r_gen_planes_refined 0.005
r_nbtor_other 0.084
r_scangle_it 3.488
r_dihedral_angle_1_deg 4.986
r_angle_other_deg 1.462
r_nbd_refined 0.215
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1977
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 242

Software

Software
Software Name Purpose
REFMAC refinement version: 5.1
SCALEPACK data scaling
CNS refinement
DENZO data reduction
CNS phasing