X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 298.0
Details 15% PEG 550 MME, 10mM zinc sulphate, 100mM MES, pH 6.5. VAPOR DIFFUSION, HANGING DROP at 298 K, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 100.6 α = 90
b = 100.6 β = 90
c = 168 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-07-15
Diffraction Radiation
Monochromator Protocol
parabolic collimating mirror placed upstream of crystal monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C 1.0 NSLS X8C

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
2.2 20 96.4 0.08 -- -- 3.0 48769 48769 0.0 0.0 15.4
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)
2.2 2.28 94.2 0.29 -- -- 2.68 4697

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 2.2 19.99 0.0 0.0 47139 47139 4749 93.1 0.207 0.207 0.19 0.233 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 2.2 2.34 6545 753 6545 0.239 0.287 0.01 87.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 30.1
Anisotropic B[1][1] -1.98
Anisotropic B[1][2] -2.53
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.98
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.97
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.88
c_angle_deg 1.3
c_bond_d 0.008
c_dihedral_angle_d 18.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6912
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 516

Software

Software
Software Name Purpose
AMoRE phasing
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling