X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7
Temperature 294.0
Details 1.8 M Tri-ammonium citrate, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 34.33 α = 90
b = 87.04 β = 106.22
c = 52.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MAR CCD 165 mm -- 2008-04-04
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 31-ID 0.97980 APS 31-ID

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
2.5 50 85.8 0.101 -- -- 3.3 -- 16975 -- -- --
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)
2.5 2.59 36.4 0.407 -- -- 1.4 727

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
SAD 2.6 20.0 -- 0.0 -- 8565 395 100.0 -- 0.189 0.183 0.3 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 2.6 2.667 -- 15 395 0.244 0.39 -- 100.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 22.484
Anisotropic B[1][1] -0.94
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.82
Anisotropic B[2][2] 0.16
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.24
RMS Deviations
Key Refinement Restraint Deviation
r_scbond_it 14.252
r_mcbond_it 1.227
r_bond_refined_d 0.018
r_chiral_restr 0.128
r_mcangle_it 5.854
r_dihedral_angle_4_deg 30.959
r_dihedral_angle_2_deg 43.38
r_gen_planes_refined 0.008
r_scangle_it 1.061
r_dihedral_angle_3_deg 22.906
r_dihedral_angle_1_deg 10.749
r_angle_refined_deg 2.098
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2020
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 95

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SHELX phasing
REFMAC refinement
PDB_EXTRACT data extraction version: 3.005
MAR345 data collection version: CCD
HKL-2000 data reduction
SHELXD phasing