X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 293.2
Details 16% Peg8000, 0.10M MES, 0.2M Calcium acetate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293.2K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 36.83 α = 90
b = 45.33 β = 90
c = 57.37 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 90
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2001-02-28
Diffraction Radiation
Monochromator Protocol
a fixed-exit double crystal monochramator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SPRING-8 BEAMLINE BL44B2 1.000 SPring-8 BL44B2

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
2.04 50 99.3 0.108 0.098 -- 5.4 34260 34023 3.0 3.0 21.1
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)
2.04 2.15 96.3 0.252 0.226 3.0 5.1 837

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 2.04 50.0 -- 0.0 6491 6457 334 99.4 -- 0.225 0.225 0.267 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 2.04 2.17 -- 60 986 0.232 0.299 0.039 98.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.2
Anisotropic B[1][1] 1.91
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.71
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.8
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.005
c_scangle_it 3.38
c_dihedral_angle_d 20.9
c_mcangle_it 2.2
c_scbond_it 2.27
c_angle_deg 1.1
c_improper_angle_d 0.73
c_mcbond_it 1.42
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 850
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 56

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
AMoRE phasing
CNS refinement version: 1.0
CCP4 data scaling version: (SCALA)