X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN WAS CRYSTALLIZED FROM 8% PEG 6000, 0.1M CACL2, 0.1M TES PH 7.5, 1 MM DTT.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.81 α = 90
b = 104.34 β = 90
c = 177.77 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 87
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI -- 1994-10
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 -- CHESS F1

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 30 92.5 -- 0.069 -- 4.0 -- 50007 -- 0.0 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT PLUS ANOMALOUS SCATTERING 2.1 10.0 -- -- -- 48504 -- 90.8 -- 0.187 0.187 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model UNRESTRAINED
Mean Isotropic B 39.5
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.94
x_bond_d 0.019
x_angle_deg 1.94
x_dihedral_angle_d 23.32
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4390
Nucleic Acid Atoms 0
Heterogen Atoms 6
Solvent Atoms 436

Software

Computing
Computing Package Purpose
DENZO, MOSFLM Data Reduction (intensity integration)
SCALEPACK, CCP4 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
HASSP, HEAVY, MLPHARE, PHASES, XTALVIEW Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
XTALVIEW model building
PHASES model building
MLPHARE model building
HEAVY model building
HASSP model building