X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.4
Temperature 291.14
Details PEG 4000, TRIS-HCl, magnesium chloride, , pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 291.14K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 210.48 α = 90
b = 45.78 β = 104.97
c = 130.27 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI -- 1997-04-30
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A -- NSLS X4A

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
2.9 100 93.7 0.215 -- -- 2.42 38774 38774 -- -1.0 16.54
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)
3.0 100.0 91.0 0.63 -- -- -- 3461

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
-- 3.0 100.0 -- 0.0 17343 17343 1739 70.4 -- -- 0.248 0.284 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
cns_dihedral_angles 21.69
c_angle_deg 1.43
c_bond_d 0.009
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8164
Nucleic Acid Atoms 0
Heterogen Atoms 14
Solvent Atoms 16

Software

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