X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.1
Details CRYSTAL SOAKED FIRST IN 4-DEOXY MALTOSE,THEN IN 4-DEOXY MALTOTRIOSYL ALPHA- FLUORIDE, pH 6.10

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 117.07 α = 90
b = 109.28 β = 90
c = 65.33 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
IMAGE PLATE MARRESEARCH -- 1997-07
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, HAMBURG BW7B

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
1.81 58.54 94.9 0.053 -- -- 3.5 -- 73264 -- 4.0 17.51
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)
1.8 1.83 49.9 0.279 -- 3.0 2.4 --

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
MOLECULAR REPLACEMENT 1.81 8.0 -- 0.0 -- 72330 3617 94.0 -- -- 0.155 0.19 EVERY
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL
RMS Deviations
Key Refinement Restraint Deviation
t_dihedral_angle_d 16.12
t_angle_deg 1.508
t_trig_c_planes 0.006
t_gen_planes 0.011
t_nbd 0.012
t_bond_d 0.006
t_incorr_chiral_ct 0.0
t_it 1.574
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5264
Nucleic Acid Atoms 0
Heterogen Atoms 130
Solvent Atoms 669

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
TNT Structure Solution
TNT V. 5-E Structure Refinement
Software
Software Name Purpose
SCALEPACK data reduction
TNT model building
DENZO data collection
TNT version: 5E refinement