X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details CRYSTALS WERE GROWN BY EQUILIBRATING A IF1-H49K SOLUTION, AT 6 MG/ML IN BUFFER 10 MM TRIS-HCL PH 8.0, RESERVOIR CONTAINING 0.8 M MONO-SODIUM DIHYDROGEN PHOSPHAT AGAINST A 0.8 M MONO-POTASSIUM DIHYDROGEN PHOSPHATE AND 0.1 M HEPES-NA BUFFER PH 8, AT 23C, IN SITTING-DROP VAPOR-DIFFUSION TRAYS.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.01 α = 90
b = 53.29 β = 95.89
c = 156.94 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 MARRESEARCH -- 2000-12-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-1 -- ESRF ID14-1

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
2.2 14.2 72.3 0.065 -- -- 2.4 -- 18750 -- -- 33.1
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)
2.2 2.35 10.8 0.227 -- 3.7 2.4 --

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
SIRAS 2.2 26.0 -- 0.0 -- 18832 1860 69.7 -- 0.258 0.258 0.28 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 2.28 -- 12 101 0.33 0.235 0.068 4.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 72.8
Anisotropic B[1][1] 15.13
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 7.1
Anisotropic B[2][2] -45.2
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 30.07
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 10.5
c_mcangle_it 6.0
c_bond_d 0.009
c_dihedral_angle_d 15.05
c_scangle_it 14.6
c_improper_angle_d 0.73
c_mcbond_it 4.1
c_angle_deg 1.16
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.43
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.36
Luzzati Sigma A (R-Free Set) 0.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2037
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Software
Software Name Purpose
MOSFLM data reduction
CCP4 data scaling
MLPHARE phasing
SHARP phasing
CNS refinement version: 1.1