X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 288.0
Details Lithium sulfate, HEPES, Sodium chloride, Magnesium sulfate. Different crystallization concentration in comparison to 1kg2., pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 288K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.45 α = 90
b = 50.2 β = 123.29
c = 70.5 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1999-10-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C 1.100 NSLS X26C

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
1.55 43 98.7 -- 0.043 -- 4.0 35337 35337 -- 0.0 18.2
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)
1.55 1.58 97.6 -- 0.25 -- 4.0 1936

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
difference fourier 1.55 43.0 -- 0.0 35337 35337 1724 98.7 -- -- 0.1722 0.2281 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.1
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.0
s_similar_adp_cmpnt 0.065
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.012
s_non_zero_chiral_vol 0.048
s_zero_chiral_vol 0.046
s_from_restr_planes 0.0231
s_similar_dist 0.069
s_angle_d 0.026
s_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.16
Number Disordered Residues 8.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 2001.52
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1752
Nucleic Acid Atoms 0
Heterogen Atoms 41
Solvent Atoms 212

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
CNS model building
SCALEPACK data reduction
DENZO data collection