X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Temperature 295.0
Details Ammonium Sulphate, Tris HCl Buffer, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.52 α = 90
b = 50.52 β = 90
c = 138.59 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH mirrors 1999-08-30
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ELETTRA BEAMLINE 5.2R 1.00 ELETTRA 5.2R

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
1.35 28.51 95.0 0.052 -- -- 5.4 40361 38342 2.0 2.0 24.697
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)
1.35 1.42 94.4 0.256 -- -- 4.5 --

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
AB INITIO PHASING 1.35 28.513 0.0 0.0 35789 33487 397 87.8 0.162 0.159 0.159 0.181 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.08
s_similar_adp_cmpnt 0.03
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.03
s_non_zero_chiral_vol 0.06
s_zero_chiral_vol 0.06
s_from_restr_planes 0.027
s_similar_dist 0.0
s_angle_d 0.03
s_bond_d 0.01
Coordinate Error
Parameter Value
Occupancy Sum Hydrogen 1028.0
Occupancy Sum Non Hydrogen 1317.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1102
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 185

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHELXL-97 Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELXL-97 model building
SCALA data reduction
MOSFLM data collection