X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.2
Details AMMONIUMS SULFATE 2.0 M, TRIS HCL 100 MM, PH 8.2-8.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.53 α = 90
b = 82.94 β = 95.03
c = 101.42 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH COLLIMATOR 2000-04-15
Diffraction Radiation
Monochromator Protocol
SI(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X31 0.95375, 1.0376 EMBL/DESY, Hamburg X31

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
1.65 43.1 98.9 -- 0.064 -- 4.7 -- 127968 -- -- 19.315
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)
1.65 1.75 93.4 -- 0.322 2.1 3.4 --

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
MAD 1.66 40.0 -- 0.0 -- 121338 6428 99.8 -- -- 0.18057 0.20966 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.74
RMS Deviations
Key Refinement Restraint Deviation
p_singtor_nbd 0.171
p_staggered_tor 11.7
p_plane_restr 0.0065
p_angle_d 0.016
p_scbond_it 2.349
p_mcangle_it 1.128
p_planar_d 0.017
p_transverse_tor 31.9
p_planar_tor 5.6
p_mcbond_it 0.796
p_chiral_restr 0.067
p_bond_d 0.004
p_multtor_nbd 0.223
p_xyhbond_nbd 0.125
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7643
Nucleic Acid Atoms 0
Heterogen Atoms 163
Solvent Atoms 949

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
SHARP phasing
SOLVE phasing
REFMAC refinement