X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.3
Temperature 300.0
Details 20% PEG8000, 500 mM Imidazole Acetate pH 7.3, VAPOR DIFFUSION, HANGING DROP, temperature 300K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.88 α = 90
b = 56.04 β = 114.04
c = 54.99 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-05-10
Diffraction Radiation
Monochromator Protocol
X9B silicon MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B 0.9796, 0.9795, 0.9400 NSLS X9B

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 35 82.0 0.04 0.045 -- 1.92 -- 16201 0.0 0.0 28.0
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 2.05 99.0 0.27 -- 3.6 1.7 1372

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 2.0 35.0 0.0 0.0 19757 19757 955 -- -- -- 0.194 0.248 random
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model one per atom
Mean Isotropic B 29.0
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.021
s_bond_d 0.005
s_non_zero_chiral_vol 0.035
s_zero_chiral_vol 0.024
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1957
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 194

Software

Software
Software Name Purpose
SHELXD/SHARP model building
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling
SHELXD phasing
SHARP phasing