X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 9
Temperature 298.0
Details amonium sulphate, pH 9.0, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 41.23 α = 90
b = 79.72 β = 90
c = 109.49 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-09-03
CCD MARRESEARCH -- 2000-09-03
Diffraction Radiation
Monochromator Protocol
BM14 SINGLE WAVELENGTH
BM14 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 1.77, 0.72 ESRF BM14

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
1.1 40 99.6 0.051 0.051 -- 3.3 145492 145492 0.0 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)
1.1 1.12 99.1 0.453 -- -- 3.3 --

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
ab initio using S positions from 'anomalous data' collected at 1.77A wavelength 1.15 40.0 0.0 0.0 121722 121722 6420 -- 0.15 0.15 0.15 0.188 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 2.4
s_bond_d 0.013
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2910
Nucleic Acid Atoms 0
Heterogen Atoms 42
Solvent Atoms 429

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHAKE-N-BAKE, SHARP, ACORN Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
ACORN model building
SHARP model building
SNB model building
SCALEPACK data reduction
DENZO data collection