X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 298.0
Details PEG 8000, sodium phosphate, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.78 α = 90
b = 66.66 β = 90
c = 100.93 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 Monochromator, Mirror 2000-01-29
Diffraction Radiation
Monochromator Protocol
Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 0.9790 NSLS X12C

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
1.17 20 95.9 0.04 -- -- 5.0 2330719 111370 0.0 0.0 18.6
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)
1.17 1.21 72.9 0.162 -- 4.6 -- 8392

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
FOURIER SYNTHESIS 1.17 10.0 -- 0.0 111197 111197 5560 96.1 0.1141 0.1141 0.1126 0.1528 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 16.1
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.102
s_similar_adp_cmpnt 0.041
s_rigid_bond_adp_cmpnt 0.006
s_anti_bump_dis_restr 0.026
s_non_zero_chiral_vol 0.091
s_zero_chiral_vol 0.082
s_from_restr_planes 0.0311
s_similar_dist 0.0
s_angle_d 0.03
s_bond_d 0.014
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.146
Luzzati Resolution Cutoff (Low) 20.0
Number Disordered Residues 35.0
Occupancy Sum Hydrogen 268.92
Occupancy Sum Non Hydrogen 3181.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2607
Nucleic Acid Atoms 0
Heterogen Atoms 51
Solvent Atoms 555

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