X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.2
Details 12% PEG 8000, 100 MM NAMES, PH 6.1, 200 MM LICL, 2 MM EDTA 0.02%, NAN3, pH 6.2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.39 α = 90
b = 132.62 β = 94.28
c = 46.81 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
IMAGE PLATE MARRESEARCH MIRRORS 1996-05-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- 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
1.85 50 99.9 0.039 -- -- 3.7 -- 33667 -- 0.0 15.6
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)
1.85 1.92 99.8 0.26 -- 6.2 3.5 --

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 1.85 50.0 -- 0.0 -- 33070 3287 97.1 -- 0.212 0.212 0.256 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 1.85 1.92 -- 290 2895 0.237 0.304 0.018 94.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 27.3
Anisotropic B[1][1] 0.85
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.38
Anisotropic B[2][2] -3.65
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.8
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 5.18
c_scbond_it 3.73
c_mcangle_it 3.39
c_mcbond_it 2.4
c_improper_angle_d 0.8
c_bond_d 0.007
c_angle_deg 1.4
c_dihedral_angle_d 22.6
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Resolution Cutoff (Low) 50.0
Luzzati ESD (R-Free Set) 0.35
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3228
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 234

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
CNS 0.3C Structure Refinement
Software
Software Name Purpose
CNS version: 0.3C refinement
X-PLOR model building
SCALEPACK data reduction
DENZO data collection