X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 2.0 M AMMONIUM SULFATE 50MM TRIS/HCL PH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 80.77 α = 90
b = 80.77 β = 90
c = 91.87 γ = 120
Symmetry
Space Group P 63

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRROR 1996-07
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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
1.75 23 90.8 0.065 -- -- 2.8 -- 31158 -- 0.0 14.25
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 1.83 90.6 0.147 -- 10.4 2.5 --

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 1.75 70.0 -- 0.0 -- 31158 1566 90.8 -- 0.158 0.169 0.182 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.02
RMS Deviations
Key Refinement Restraint Deviation
p_multtor_nbd 0.252
p_planar_d 0.034
p_mcangle_it 2.03
p_mcbond_it 1.41
p_xyhbond_nbd 0.135
p_special_tor 0.0
p_chiral_restr 0.137
p_transverse_tor 29.8
p_scangle_it 3.41
p_staggered_tor 14.3
p_angle_d 0.027
p_bond_d 0.014
p_plane_restr 0.021
p_singtor_nbd 0.176
p_scbond_it 2.2
p_planar_tor 4.3
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.06
Luzzati Resolution Cutoff (Low) 9.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2143
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 207

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CCP4 Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
SCALEPACK data reduction
CCP4 model building
REFMAC refinement
DENZO data collection