X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.2
Temperature 291.0
Details PEG 2000 (MME), sodium acetate, ammonium sulfate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 43.6 α = 90
b = 78.62 β = 91.95
c = 89.43 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2000-02-10
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 1.08 SSRL BL7-1

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
1.99 19.85 99.4 0.062 -- -- 5.0 41059 39229 0.0 1.0 13.5
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 2.13 90.5 0.802 -- -- 5.0 --

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 19.85 0.0 0.0 39229 39229 3930 96.1 -- -- 0.228 0.261 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 2.13 4604 644 5500 0.264 0.307 0.012 90.5
X Ray Diffraction 2.09 2.2 4728 477 4251 0.253 0.254 0.012 93.2
X Ray Diffraction 2.2 2.34 4794 489 4305 0.232 0.232 0.01 94.8
X Ray Diffraction 2.34 2.52 4891 462 4429 0.244 0.243 0.011 95.8
X Ray Diffraction 2.52 2.77 4949 491 4458 0.258 0.257 0.012 97.1
X Ray Diffraction 2.77 3.17 4993 502 4491 0.26 0.259 0.012 97.9
X Ray Diffraction 3.17 3.99 5102 522 4580 0.22 0.221 0.01 99.6
X Ray Diffraction 3.99 19.85 5168 515 4653 0.187 0.186 0.008 99.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.41
Anisotropic B[1][1] 5.21
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -6.04
Anisotropic B[2][2] -3.96
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.24
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.005
x_torsion_impr_deg 0.68
x_angle_deg 1.2
x_torsion_deg 23.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4596
Nucleic Acid Atoms 0
Heterogen Atoms 30
Solvent Atoms 90

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MAR345 data collection
SCALEPACK data scaling
MLPHARE phasing