X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details THE HANGING DROPS CONTAINED PROTEIN AT A CONCENTRATION OF 8 - 15 MG/ML, 50 MM TRIS-HCL BUFFER, PH 7.0, 40 MM ASPARTIC ACID AND 1.0 - 1.25 M AMMONIUM SULPHATE. THE WELL CONTAINED THE SAME ABOVE BUFFER PLUS 2.25 M AMMONIUM SULPHATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.48 α = 90
b = 63.05 β = 90
c = 79.82 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
IMAGE PLATE MARRESEARCH -- 1998-02-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, HAMBURG X11

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
1.4 30 97.0 0.085 -- -- 3.5 -- 59985 -- -- 16.6
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)
1.4 1.42 97.4 0.19 -- 7.0 3.5 --

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 1.4 30.0 -- -- -- 53449 5989 97.0 -- 0.15621 0.15185 0.19471 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.9
Anisotropic B[1][1] 0.22
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.7
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.48
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2381
Nucleic Acid Atoms 0
Heterogen Atoms 66
Solvent Atoms 526

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement