X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 298.0
Details PEG 4000, GLYCEROL, pH 8.5, VAPOR DIFFUSION, HANGING DROP at 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.27 α = 90
b = 77.47 β = 96.37
c = 52.01 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 BRANDEIS -- 2001-04-14
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 1.0720 NSLS X12C

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
1.45 25 100.0 0.04 0.036 -- -- 61620 61620 0.0 0.0 20.3
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)
1.45 1.5 100.0 0.297 0.297 3.6 -- 6131

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
MIR 1.5 24.58 -- 1.0 55782 51487 4196 92.3 0.216 0.214 0.214 0.239 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 1.5 1.55 3945 359 3945 0.274 0.317 0.017 77.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 25.3
Anisotropic B[1][1] -3.56
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.73
Anisotropic B[2][2] -2.23
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.79
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.75
c_bond_d 0.007
c_scangle_it 5.91
c_angle_deg 1.3
c_mcangle_it 3.61
c_dihedral_angle_d 21.8
c_mcbond_it 3.08
c_scbond_it 4.49
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 25.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.19
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2727
Nucleic Acid Atoms 0
Heterogen Atoms 14
Solvent Atoms 332

Software

Software
Software Name Purpose
MLPHARE phasing
CNS refinement version: 1.0
MARMAD data reduction
SCALEPACK data scaling