X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 2.8
Temperature 293.0
Details PEG 10000, KNO3, 1,4-Butanediol, pH 2.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.71 α = 90
b = 113.35 β = 90
c = 121.36 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 -- 2002-01-31
Diffraction Radiation
Monochromator Protocol
Double-crystal Si(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 1.24345 , 1.28201, 1.28243 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
2.3 100 -- 0.053 -- -- 10.4 -- 81300 -1.5 -3.0 23.5
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)
2.3 2.35 84.4 0.24 -- 8.7 7.1 --

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 2.3 82.84 -- 0.0 83231 81300 7986 95.7 -- 0.21 0.21 0.248 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 2.3 2.38 -- 746 6859 0.254 0.329 0.012 89.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 33.5
Anisotropic B[1][1] 5.41
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.07
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.35
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_scbond_it 2.55
c_bond_d 0.007
c_scangle_it 3.77
c_improper_angle_d 0.77
c_mcbond_it 1.41
c_mcangle_it 2.28
c_dihedral_angle_d 22.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.27
Luzzati Sigma A (Observed) 0.23
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.32
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7412
Nucleic Acid Atoms 0
Heterogen Atoms 124
Solvent Atoms 326

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
MLPHARE phasing
CNS refinement version: 1.1