X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.4
Details HANGING DROP METHOD 8% PEG 8000, 200 MM POTASSIUM PHOSPHATE PH 7.4., vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 125.7 α = 90
b = 91.2 β = 122.7
c = 74.2 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 -- MIRRORS 1996-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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
2.1 20 92.0 -- 0.088 -- 4.0 -- 14445 3.0 3.0 31.1
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)
2.1 2.18 96.2 -- 0.396 3.7 4.0 --

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
MIR 2.1 20.0 -- 2.0 -- 36876 1839 92.0 -- 0.212 0.212 0.268 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 36.6
Anisotropic B[1][1] -13.89
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -7.356
Anisotropic B[2][2] -13.92
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.845
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.009
x_improper_angle_d 1.53
x_dihedral_angle_d 22.3
x_angle_deg 1.55
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 40.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2951
Nucleic Acid Atoms 689
Heterogen Atoms 2
Solvent Atoms 288

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
X-PLOR model building
X-PLOR refinement
X-PLOR phasing