X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.4
Temperature 24.0
Details PEG 8000, Tris, Ammonium sulfate, DTT, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 24K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.44 α = 90
b = 65.9 β = 90.24
c = 184.94 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 137
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-03-22
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 -- SSRL BL9-1

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
1.9 500 90.3 0.088 -- -- 4.0 104488 94284 2.0 2.0 16.3
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)
1.9 1.93 75.1 0.523 -- -- 4.0 3882

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
-- 1.9 22.4 0.0 2.0 86406 86406 8631 83.5 -- 0.217 0.217 0.247 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 1.9 2.02 -- 1166 10189 0.249 0.279 0.008 66.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 30.8
Anisotropic B[1][1] 2.96
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.64
Anisotropic B[2][2] -2.91
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.05
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.04
c_mcangle_it 1.52
c_mcbond_it 0.87
c_bond_d 0.013
c_angle_deg 1.7
c_scangle_it 1.7
c_scbond_it 1.09
c_dihedral_angle_d 24.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 9594
Nucleic Acid Atoms 0
Heterogen Atoms 228
Solvent Atoms 500

Software

Software
Software Name Purpose
AMoRE phasing
CNS refinement version: 0.9
DENZO data reduction
SCALEPACK data scaling