X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.8
Temperature 277.0
Details SITTING DROP, 4 DEGREES C, 3.5MG/ML PROTEIN + 5MM COA, 100MM TRIS-HCL PH7.8, 0.8% PEG4K, 18% T-BUTANOL, 20MM SRCL2, 7% DIOXANE, 5% 2,4-METHYLPENTANEDIOL, 40MM HEXANEDIOL, 10MM DITHIOTHREITOL, 2MM TRIS(2-CARBOXY- ETHYL)PHOSPHINE-HCL, 10MM SPERMIDINE, 2.5% GLYCEROL, vapor diffusion - sitting drop, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.54 α = 90
b = 102.26 β = 93.73
c = 50.14 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 1998-05-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F2 0.9793, 0.9703, 0.9668 CHESS F2

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 20 92.9 -- 0.052 -- 7.3 -- 16291 -- 2.0 27.0
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)
2.3 2.42 92.9 -- 0.093 6.4 7.2 --

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 15.0 -- 2.0 -- 15675 -- 89.5 -- 0.201 0.201 0.25 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 2.33 -- -- 424 0.193 0.232 -- 92.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 24.9
Anisotropic B[1][1] 1.276
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -4.699
Anisotropic B[2][2] 3.986
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -5.262
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.598
c_angle_deg 1.41
c_mcbond_it 1.13
c_dihedral_angle_d 24.0
c_bond_d 0.007
c_improper_angle_d 0.71
c_mcangle_it 1.779
c_scbond_it 1.88
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2116
Nucleic Acid Atoms 0
Heterogen Atoms 106
Solvent Atoms 253

Software

Software
Software Name Purpose
SHARP phasing
CNS refinement version: 0.3C
MOSFLM data reduction
CCP4 data scaling version: (SCALA)