X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.3
Temperature 302.0
Details PEG 6000, sodium chloride, magnesium chloride, tris-HCl, pH 8.3, VAPOR DIFFUSION, HANGING DROP, temperature 302K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.9 α = 90
b = 82.56 β = 90
c = 132.26 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 198
2 198
3 198
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 -- 1998-10-01
CCD BRANDEIS - B1.2 -- 1999-01-01
IMAGE PLATE MARRESEARCH -- 1998-01-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C
ROTATING ANODE OTHER -- -- --

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
1.8 25 99.1 0.059 -- -- 16.2 -- 79737 2.0 0.0 --
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)
1.8 1.86 96.0 0.107 -- -- -- 7547

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
-- 1.8 500.0 0.0 0.0 -- 78928 2390 -- -- -- 0.169 0.195 random
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.54
c_bond_d 0.012
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5764
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 756

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
MLPHARE Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
MLPHARE model building