X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details HANGING DROP. PROTEIN SOLUTION: 35 MG/ML PROTEIN, 0.1 M CHES PH 8.5. WELL SOLUTION: 47% AMMONIUM SULFATE, 2% PEG 400

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.4 α = 90
b = 91.4 β = 90
c = 346.6 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE R-AXIS II -- 1995-09-15
Diffraction Radiation
Monochromator Protocol
NI FILTER, 0.00025MM SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
2.4 20 84.3 -- 0.105 -- 3.1 -- 29191 -- 0.0 18.4
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)
2.4 2.55 66.8 -- 0.28 2.2 -- --

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 2.4 10.0 -- 2.0 -- 27603 1371 80.9 -- 0.16 0.16 0.219 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 2.4 2.43 -- -- 622 0.27 0.29 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 20.35
Anisotropic B[1][1] -0.429
Anisotropic B[1][2] -1.912
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.429
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.858
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 0.0
c_scbond_it 0.0
c_mcangle_it 0.0
c_mcbond_it 0.0
c_improper_angle_d 0.85
c_bond_d 0.008
c_angle_deg 1.42
c_dihedral_angle_d 23.8
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 10.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4904
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 515

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS 1.0, X-PLOR 3.1 Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
X-PLOR version: 3.1 model building
CNS version: 1.0 model building