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_mcbond_it 1.41
p_mcangle_it 2.03
p_planar_tor 4.3
p_special_tor 0.0
p_staggered_tor 14.3
p_bond_d 0.014
p_plane_restr 0.021
p_planar_d 0.034
p_scangle_it 3.41
p_transverse_tor 29.8
p_scbond_it 2.2
p_chiral_restr 0.137
p_xyhbond_nbd 0.135
p_singtor_nbd 0.176
p_multtor_nbd 0.252
p_angle_d 0.027
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

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CCP4 model building
REFMAC refinement
CCP4 phasing