X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Liquid Diffusion
pH 6.8
Temperature 298.0
Details PEG8000, imidazole, sodium acetate, ytterbium chloride, bestatin, pH 6.8, LIQUID DIFFUSION, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.6 α = 90
b = 133.5 β = 90
c = 83.4 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR MARRESEARCH -- 1998-07-12
Diffraction Radiation
Monochromator Protocol
Si(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 0.992, 1.3838, 1.3842, 0.8856 ESRF BM14

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
1.95 34 97.7 0.043 -- -- 4.7 54827 54827 0.0 0.0 20.906
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)
1.95 2.05 89.6 0.186 -- 3.9 3.6 --

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 1.95 25.0 0.0 0.0 54827 54827 2460 -- 0.185 0.185 0.188 0.247 random
RMS Deviations
Key Refinement Restraint Deviation
t_angle_deg 2.2
t_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4876
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 551

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
MLPHARE, SHARP Structure Solution
TNT Structure Refinement
Software
Software Name Purpose
SHARP model building
MLPHARE model building
TNT refinement