X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details 1.0M Tris, PH8.5, 35-40%ammonium sulfate, 20mM BME, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 96.02 α = 90
b = 96.02 β = 90
c = 80.72 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARMOSAIC 300 mm CCD -- 2006-04-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID -- APS 22-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
1.75 50 86.0 0.084 -- -- 4.9 -- 37591 -- -- --
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)
1.75 1.81 45.4 0.66 -- -- 2.0 1964

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
-- 1.75 50.0 -- 0.0 -- 37576 1885 85.91 -- 0.231 0.229 0.268 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 1.75 1.795 -- 70 1279 0.401 0.406 -- 42.17
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 51.417
Anisotropic B[1][1] -3.58
Anisotropic B[1][2] -1.79
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.58
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.37
RMS Deviations
Key Refinement Restraint Deviation
r_gen_planes_refined 0.011
r_bond_refined_d 0.03
r_dihedral_angle_2_deg 37.423
r_chiral_restr 0.163
r_mcangle_it 2.575
r_dihedral_angle_4_deg 21.672
r_symmetry_vdw_refined 0.217
r_mcbond_it 1.687
r_scangle_it 5.723
r_nbd_refined 0.233
r_nbtor_refined 0.32
r_xyhbond_nbd_refined 0.195
r_symmetry_hbond_refined 0.108
r_dihedral_angle_1_deg 6.513
r_angle_refined_deg 2.396
r_dihedral_angle_3_deg 19.378
r_scbond_it 3.835
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2116
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 124

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
REFMAC refinement
PDB_EXTRACT data extraction version: 3.006
HKL-2000 data reduction
CNS phasing