X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.6
Temperature 291.0
Details 1.5 M Li2SO4, 0.1 M HEPES, 0.5% NaAzide, 10 mM EDTA, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 70.42 α = 90
b = 130.25 β = 90
c = 67.28 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
2 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD 3x3 mosaic in house -- 1998-08-14
CCD BRANDEIS -- 1998-06-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID -- APS 19-ID
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
1.7 35.33 94.2 0.035 -- -- 5.6 188165 68339 0.0 0.0 18.9
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)
1.75 1.81 93.9 0.242 -- -- 2.6 2281

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
-- 1.75 35.21 2.0 0.0 31646 31393 3140 99.2 -- -- 0.214 0.25 random 10% pick using make_cv.inp of CNS.
RMS Deviations
Key Refinement Restraint Deviation
c_torsion_impr_deg 0.73
c_torsion_deg 22.9
c_angle_deg 1.3
c_bond_d 0.005
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2146
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 227

Software

Computing
Computing Package Purpose
MARMAD, DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE, SHARP Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
SOLVE/SHARP model building
SCALEPACK data reduction
XTAL version: 2= DENZO data collection
XTAL version: 1=MARMAD data collection