X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PEG 8K 17%, AMMONIUM SULPHATE 0.2 M, PH 6.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 127.4 α = 90
b = 101 β = 90
c = 81.8 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 290
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-11-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, HAMBURG BW7B

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
2.57 20 97.4 -- 0.107 -- 6.9 -- 33531 -- -3.0 41.4
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)
2.57 2.7 84.5 -- 0.428 3.2 -- --

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
MOLECULAR REPLACEMENT 2.57 20.0 -- 0.0 -- 33531 -- 97.4 -- 0.194 0.194 0.274 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 31.05
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.65
x_bond_d 0.007
x_angle_deg 1.32
x_dihedral_angle_d 28.3
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.26
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7027
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 87

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
X-PLOR 3.851 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.851 refinement
AMORE model building
SCALEPACK data reduction
DENZO data collection