X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.5
Temperature 298.0
Details 25% poly-ethylene glycol 4000, 50mM phosphate buffer, 0.2mM ammonium acetate, 20% isopropanol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 60.35 α = 90
b = 60.35 β = 90
c = 213.9 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 170
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH mirrors 2001-11-10
Diffraction Radiation
Monochromator Protocol
Flat mirror, single SI crystal bend SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 0.99 SSRL BL7-1

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 36.62 94.8 -- 0.072 -- 6.8 -- 13538 0.0 0.0 43.7
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 2.64 96.6 -- 0.22 3.3 5.21 2047

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
MOLECULAR REPLACEMENT 2.5 37.0 -- 0.0 12441 12441 991 -- -- 0.219 0.209 0.324 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Anisotropic
Anisotropic B[1][1] -0.31
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.31
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.62
RMS Deviations
Key Refinement Restraint Deviation
t_dihedral_angle_d 15.975
t_angle_deg 1.647
t_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2658
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 122

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
CNS 1.1, TNT Structure Refinement
Software
Software Name Purpose
TNT refinement
CNS1.1 refinement
AMoRE model building
SCALA data reduction
MOSFLM data collection