X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 4.6
Temperature 277.0
Details PEG 4000, sodium acetate , pH 4.6, VAPOR DIFFUSION, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.56 α = 90
b = 57.56 β = 90
c = 266.13 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 97
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-11-03
Diffraction Radiation
Monochromator Protocol
germanium 220 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 0.976262 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
2 20 90.34 0.064 -- -- 13.14 31534 28476 0.0 -- --
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)
2.0 2.07 98.7 0.201 -- -- -- --

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 2.0 20.0 -- 0.0 31245 31245 2814 -- 0.2294 0.2294 0.2248 0.2685 random
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.0 2.01 437 51 -- 0.2548 0.3004 -- --
X Ray Diffraction 2.01 2.03 539 61 -- 0.2613 0.2847 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.2792
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.006283
c_dihedral_angle_d 22.09
c_improper_angle_d 1.16
c_angle_d 1.162
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3362
Nucleic Acid Atoms 0
Heterogen Atoms 98
Solvent Atoms 192

Software

Software
Software Name Purpose
MAR345 data collection
SCALEPACK data scaling
X-PLOR model building
CNS refinement
X-PLOR phasing