X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8.8
Temperature 20.0
Details 1.0 Sodium Citrate, 0.1M CHES, pH 8.8, VAPOR DIFFUSION, SITTING DROP, temperature 20K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.22 α = 90
b = 86.58 β = 90
c = 92.92 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 200
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-11-08
Diffraction Radiation
Monochromator Protocol
Si 111 CHANNEL MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.9786, 0.9792, 0.9537 ALS 5.0.2

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
2.4 50 99.8 0.059 0.059 -- 6.8 25244 25244 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)
2.4 2.53 99.1 0.253 0.253 2.9 6.1 3603

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 2.4 20.0 0.0 0.0 -- 23847 1286 99.67 -- 0.2305 0.2281 0.27581 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 2.4 2.462 -- 96 1680 0.25 0.327 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.507
Anisotropic B[1][1] -0.74
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.5
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.77
RMS Deviations
Key Refinement Restraint Deviation
r_scbond_it 2.38
r_gen_planes_refined 0.006
r_dihedral_angle_1_deg 3.743
r_xyhbond_nbd_refined 0.187
r_chiral_restr 0.099
r_angle_refined_deg 1.527
r_nbd_refined 0.262
r_dihedral_angle_2_deg 19.917
r_symmetry_hbond_refined 0.232
r_scangle_it 3.296
r_mcbond_it 0.746
r_mcangle_it 1.245
r_bond_refined_d 0.013
r_symmetry_vdw_refined 0.225
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4124
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 133

Software

Software
Software Name Purpose
REFMAC refinement version: 5.0
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
SHELXS phasing