X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details Orthorhombic crystals were grown by vapour diffusion from solutions of 20 % PEG 6K, 0.2 M ammonium sulphate in 0.1 M cacodylate buffer pH 6.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.3 α = 90
b = 188 β = 90
c = 193.4 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1998-12-01
Diffraction Radiation
Monochromator Protocol
SILICON CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, HAMBURG X11

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
1.9 19 98.4 0.047 -- -- 3.1 -- 132348 -- -3.0 0.215
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)
1.9 1.93 92.4 0.327 -- 2.2 -- --

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
MOLECULAR REPLACEMENT 1.9 19.0 -- 0.0 -- 132346 6647 98.4 -- 0.204 0.204 0.259 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 0.327
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 36.1
p_staggered_tor 15.0
p_planar_tor 3.9
p_xyhbond_nbd 0.197
p_xhyhbond_nbd 0.197
p_multtor_nbd 0.25
p_bond_d 0.013
p_angle_d 0.031
p_planar_d 0.035
p_mcbond_it 1.9
p_mcangle_it 2.5
p_scbond_it 2.5
p_scangle_it 3.2
p_plane_restr 0.023
p_chiral_restr 0.13
p_singtor_nbd 0.19
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 10392
Nucleic Acid Atoms 0
Heterogen Atoms 55
Solvent Atoms 900

Software

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