X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details 100 NL OF PROTEIN SOLUTION (10 MG ML-1 IN 100 MM SODIUM ACETATE PH 5.0, 150 MM NACL AND 0.5 MM ZINC SULPHATE) WERE MIXED AT 1:1 RATIO WITH RESERVOIR (0.2M LITHIUM SULPHATE, 25% PEG 3350 AND 0.1M BIS-TRIS, PH 5.5) EQUILIBRATED AGAINST A 70 UL RESERVOIR. CRYSTALS WERE OBSERVED AFTER THREE DAYS.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.9 α = 90
b = 85.95 β = 90
c = 289.02 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH MIRRORS 2011-02-17
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID23-2 -- ESRF ID23-2

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
1.9 40 99.9 0.13 -- -- 4.2 -- 124234 -- 2.0 --
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)
1.9 2.0 100.0 0.48 -- 2.7 4.2 --

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 1.9 40.0 -- -- -- 117888 6246 99.75 -- 0.16641 0.16439 0.20455 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 1.9 1.949 -- 434 8081 0.241 0.27 -- 99.96
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 16.436
Anisotropic B[1][1] -0.57
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.11
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.54
RMS Deviations
Key Refinement Restraint Deviation
r_chiral_restr 0.08
r_dihedral_angle_4_deg 16.01
r_dihedral_angle_2_deg 31.897
r_angle_refined_deg 1.143
r_bond_refined_d 0.008
r_dihedral_angle_3_deg 13.856
r_dihedral_angle_1_deg 5.801
r_gen_planes_refined 0.005
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11931
Nucleic Acid Atoms 0
Heterogen Atoms 112
Solvent Atoms 1049

Software

Software
Software Name Purpose
REFMAC refinement version: 5.6.0117
iMOSFLM data reduction
SCALA data scaling
PHASER phasing